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Viridian III Technical Specification OPW1 [As Published] · 142008.256
VIRIDIAN III - Landscape Works
VIRIDIAN III
LANDSCAPE TECHNICAL SPECIFICATION
LS-2059.03 P2 – VIRIDIAN III - Issue OP1
Prepared for: Leighton Properties Pty Ltd
33 Viewland Drive
Noosa Heads, QLD 4567
Prepared by
EDAW Australia
Level 3 Platinum Building
Duporth Avenue
Maroochydore QLD 4558
Ph: (07) 5479 4405
Fax: (07) 5479 1832
ISSUE AMENDMENT/REVISION DETAILS DATE SIGNED
OFF
OP1 12/02/08 DH
EDAW Aust Page 1 February 2008
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VIRIDIAN III - Landscape Works
TABLE OF CONTENTS
1. PRELIMINARIES ............................................................................................................................ 4
1.1 SCOPE OF WORK ................................................................................................................. 4
1.2 EXCLUDED WORKS .............................................................................................................. 4
1.3 DEFINITIONS.......................................................................................................................... 4
1.4 SITE MEETINGS..................................................................................................................... 4
1.5 CONSTRUCTION OF WORKS .............................................................................................. 4
1.6 CONSTRUCTION PROGRAM ............................................................................................... 5
1.7 REFERENCED DOCUMENTS ............................................................................................... 5
1.8 CONNECTON TO SERVICES................................................................................................ 5
1.9 SITE FACILITIES .................................................................................................................... 5
1.10 PARKING & SITE YARD......................................................................................................... 5
1.11 MATERIALS & WORKMANSHIP............................................................................................ 5
1.12 INSPECTION .......................................................................................................................... 6
1.13 TESTING................................................................................................................................. 6
1.14 SAMPLES ............................................................................................................................... 6
1.15 ENVIRONMENTAL PROTECTION ........................................................................................ 7
1.16 PLANT ESTABLISHMENT...................................................................................................... 7
1.17 IRRIGATION ........................................................................................................................... 7
1.18 WARRANTIES ........................................................................................................................ 9
1.19 WORKPLACE HEALTH AND SAFETY .................................................................................. 9
1.20 VERIFICATION OF SERVICES.............................................................................................. 9
2. WEED ERADICATION ................................................................................................................. 10
3. BASIC EXCAVATION .................................................................................................................. 11
3.1 EXCAVATION ....................................................................................................................... 11
4. STORMWATER DRAINAGE........................................................................................................ 13
4.1 SUBSOIL DRAINS ................................................................................................................ 13
4.2 SURFACE DRAINAGE ......................................................................................................... 14
5. EDGING ........................................................................................................................................ 15
5.1 TIMBER EDGING ................................................................................................................. 15
6. CONCRETE WORKS ................................................................................................................... 16
6.1 GENERAL ............................................................................................................................. 16
6.2 MATERIALS AND CONSTRUCTION REQUIREMENTS..................................................... 16
6.3 CONCRETE STRENGTH CRITERIA ................................................................................... 17
6.4 REJECTION OF CONCRETE .............................................................................................. 18
6.5 REINFORCEMENT............................................................................................................... 18
6.6 JOINTS.................................................................................................................................. 18
6.7 SURFACE FINISHES ........................................................................................................... 19
6.8 FINISHES AND HARDSCAPE SCHEDULE......................................................................... 20
6.9 SERVICE INFILL COVERS .................................................................................................. 22
7. TIMBER WORK ............................................................................................................................ 23
7.1 TIMBER SIZES ..................................................................................................................... 23
7.2 TIMBER QUALITY ................................................................................................................ 23
7.3 DECKING TIMBER ............................................................................................................... 24
8. FENCES........................................................................................................................................ 25
8.1 GENERAL ............................................................................................................................. 25
8.2 FENCE TYPE SCHEDULE ................................................................................................... 26
9. WALLS.......................................................................................................................................... 27
9.1 GENERAL ............................................................................................................................. 27
9.2 WATERPROOFING .............................................................................................................. 27
9.3 STONE WALL FACING AND CAPPING .............................................................................. 27
9.4 WALL TYPES SCHEDULE ................................................................................................... 29
10. DRAINAGE SWALES................................................................................................................... 30
10.1 ROCK PLACEMENT............................................................................................................. 30
EDAW Aust Page 2 February 2008
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VIRIDIAN III - Landscape Works 10.2 GRAVEL SWALES................................................................................................................ 30 10.3 RIVER ROCK PLACEMENT................................................................................................. 30 10.4 BOULDER PLACEMENT...................................................................................................... 30 11. STRUCTURES, FURNITURE AND FIXINGS .............................................................................. 31 11.1 GENERAL ............................................................................................................................. 31 11.2 QUALITY ............................................................................................................................... 31 11.3 STRUCTURES AND FURNITURE ....................................................................................... 31 11.4 STRUCTURES AND FURNITURE TYPE SCHEDULE........................................................ 31 11.5 BALUSTRADES, HANDRAILS AND BOLLARDS ................................................................ 32 11.6 BALUSTADES, HANDRAILS AND BOLLARDS SCHEDULE .............................................. 32 11.7 KOALA POLES ..................................................................................................................... 33 12. TOPSOIL....................................................................................................................................... 34 12.1 SUBSOIL............................................................................................................................... 34 12.2 IMPORTED TOPSOIL........................................................................................................... 34 12.3 CHARACTERISTICS ............................................................................................................ 35 12.4 TOPSOIL STORAGE ............................................................................................................ 35 12.5 TOPSOIL TYPES ..................................................................................................................35 12.6 PLACING TOPSOIL.............................................................................................................. 36 13. MULCH ......................................................................................................................................... 38 13.1 ORGANIC MULCH................................................................................................................ 38 14. PLANTING WORKS ..................................................................................................................... 39 14.1 GENERAL ............................................................................................................................. 39 14.2 SPECIAL REQUIREMENTS ................................................................................................. 39 14.3 EXCAVATING FOR PLANTING ........................................................................................... 39 14.4 PLANTING ............................................................................................................................ 39 14.5 TREE SURGERY.................................................................................................................. 41 14.6 PLANT MATERIALS ............................................................................................................. 42 14.7 STAKES AND TIES .............................................................................................................. 42 14.8 EXISTING SERVICES PROTECTION ................................................................................. 43 15. MAINTENANCE............................................................................................................................ 44 15.1 HARD AND SOFTSCAPE ESTABLISHMENT PERIOD ...................................................... 44 15.2 COMPLETION ...................................................................................................................... 46 EDAW Aust Page 3 February 2008
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VIRIDIAN III - Landscape Works
1. PRELIMINARIES
1.1 SCOPE OF WORK
To be co-ordinated by Builder.
1.2 EXCLUDED WORKS
To be co-ordinated by Builder.
1.3 DEFINITIONS
The terms ‘directed’, ‘selected’, ‘required’ and ‘approved’ mean directed, selected, required
and approved by the Builder unless expressly specified otherwise.
Unless the contract otherwise requires, the following definitions apply:
Head Contract: “Head contract” shall mean contract to which the contractor is
nominated as subcontractor.
Supply: “Supply”, “furnish” and similar expressions mean “supply
only”.
Provide: “Provide” and similar expressions mean “supply and install”.
Approved: “Approved”, “reviewed”, “directed”, “endorsed” and similar
expressions mean “approved (reviewed, directed, rejected,
endorsed) in writing by the contract administrator.”
Give Notice: “Give notice”, “submit”, “advise”, “inform” and similar
expressions mean “give notice (submit, advise, inform) in
writing to the contract administrator”.
Proprietary: “Proprietary” means identifiable by naming manufacturer,
supplier, installer, trade name, brand name, and catalogue or
reference number.
Samples: Includes samples, prototypes and sample panels.
NATA: National Association of Testing Authorities.
1.4 SITE MEETINGS
Site meetings will be held as determined by builder
Location: To be agreed between all parties
Time: To be agreed between all parties
Chairperson: Builder
Meeting Minutes taken Builder
by:
Distribution of Minutes: Builder
1.5 CONSTRUCTION OF WORKS
Works will be performed in accordance with the site management plan provided by the Head
contractor.
EDAW Aust Page 4 February 2008
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VIRIDIAN III - Landscape Works
1.6 CONSTRUCTION PROGRAM
Three (3) construction programs are to be submitted to the Builder prior to commencement
of work for approval no less than seven (7) days following notification of being awarded the
contract. Advise if any of the documents are to be returned.
Construction program will clearly indicate the following information on a weekly basis:
• Project Milestones
• Critical path of construction
• Tasks
• Progress
Contractor is to ensure the work is organised, sequenced, and implemented in a manner
which eliminates unreasonable disturbance to the site, property and disruption to continuing
property users, and access.
1.7 REFERENCED DOCUMENTS
Use latest editions of referenced documents and refer to any amendments. Other editions or
amendments required by statutory authorities will take precedence over referenced
documents.
Responsibilities and duties of the Principal, Contractor and Builder are not altered by
requirements in referenced documents.
1.8 CONNECTON TO SERVICES
The Contractor shall allow for the connection of all irrigation controllers to electrical mains
and shall be included as a rated fitting with the approval of Energex to avoid the installation
of a switchboard.
The Contractor shall similarly allow for the connection of the irrigation system to the mains
water supply including all costs associated and Noosa water charges.
1.9 SITE FACILITIES
The Contractor shall establish site sheds and storage facilities etc within the site area
provided to the head contractor. Water, electricity and toilet facilities will be provided for
connection at the nominated location.
1.10 PARKING & SITE YARD
The Contractor will arrange storage of materials on site in a nominated area within the head
contract site area. The Contractor shall remain fully responsible for the materials stored on
site.
1.11 MATERIALS & WORKMANSHIP
Where specified, materials which are not available or cannot reasonably be provided in time
to meet the program, the Builder will permit substitutions for such materials provided that
EDAW Aust Page 5 February 2008
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VIRIDIAN III - Landscape Works applications for substitution is made as soon as it is known that specified materials are unavailable. The Landscape Architect shall approve substitutions if he/she are satisfied that the proposed substitute is satisfactory for the purpose intended. Unless otherwise specified, manufactured items to be used in the work under the contract are to be used in accordance with current recommendations published by the manufacturer. Workmanship shall be the best of its respective kind and conform to the best practices of the trade. Only suitably qualified persons shall perform work on this project relevant to their area of expertise. 1.12 INSPECTION If notice of inspection is to be given in respect of parts of the works, advise if and when those parts are to be concealed. Do not conceal those parts unless approved in writing by the Builder. Minimum of 24 (twenty-four) hours notice for inspections to be made. 1.13 TESTING Testing to be in accordance with EMP: Viridian Noosa Stage 3, Issue: 1 by Chenoweth EPLA Revision: 1 2/11/2008. 1.14 SAMPLES Submit representative samples of the plants and other materials and products specified in the SAMPLE SCHEDULE. Submit a plant sample of each species for inspection and approval in the condition in which it is proposed to supply it to the site. Replace, at no additional cost, plant samples rejected as unsuitable for used, including samples rendered unsuitable by the process of examination (e.g. for root condition), samples not rejected may be included in plant material for use in the works. Coordinate submissions of related sample compliance information. Delays caused by late submissions or submitting inadequate sample compliance information will not be grounds for extensions of time. Contractor to submit four (4) copies of sample compliance information only. No samples of materials are to be supplied unless requested by the Builder. Identify the project, Contractor, subcontractor or supplier, manufacturer, applicable product, model number and options, as appropriate and include pertinent contract documentation references. Include service connection requirements and product certification. Identify non- compliances with product requirements, and characteristics that may be detrimental to successful performance of the completed work. Do not commence work affected by samples until the sample compliance information has been approved. Submit further sample compliance information as requested by the Builder. Keep samples in good condition on site, until practical completion. Samples are to be available for inspection if requested by the Builder at any time. EDAW Aust Page 6 February 2008
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VIRIDIAN III - Landscape Works SAMPLE SCHEDULE Specimen or Item: Quantity: Imported topsoil mixes / additives 1kg ea Organic Mulch – 1’ hoop pine as specified 1kg Inorganic Mulch 1kg Yellow Stone Wall Facing Wall type W1 (refer wall type schedule) 1m2 Blockwork Wall type W2 (refer wall type schedule) 1m2 All paving and concrete finishes (refer paving type schedule) 2m2 Plant stock images All Pool Coping 2 linear m All Pool Surfacing 2m2 1.15 ENVIRONMENTAL PROTECTION Refer to EMP: Viridian Noosa Stage 3, Issue: 1 by Chenoweth EPLA Revision: 1 2/11/2008. 1.16 PLANT ESTABLISHMENT The Plant Establishment Period is the time subsequent to Practical Completion during which the Contractor has specific responsibilities for the maintenance of the plant material. Specific responsibilities are outlined in the Specification and Maintenance Manual. The Plant Establishment Period is twenty-six (26) weeks from the Date of Practical Completion. At the end of the Plant Establishment Period, all plant material shall be in good health and have grown at a rate deemed acceptable by the Landscape Architect. They shall be capable of growth independent of all temporary works. During Maintenance Period Any plant material that shows signs of stress or decline during the Plant Establishment Period will be inspected by the Landscape Architect. If in the opinion of the Landscape Architect the plant is stressed, failed or deteriorating, the Contractor is required to replace that plant immediately with the same species and of an equivalent size to that of the specified plant size in the contract and equivalent to normal growth rate prior to its removal. Completion of Maintenance Period At the end of the Plant Establishment Period, any plant material which has not shown significant signs of growth, failed, deteriorated, or in the opinion of the Landscape Architect requires replacement shall be replaced immediately by the Contractor, at the Contractor’s expense. Plant material to be replaced is to be of the same species and of an equivalent size to that of the specified plant size in the contract after twenty-six (26) weeks of successful establishment. This size will be determined ICC if required. The Council representative charged with assessing plant material shall be a suitably qualified horticulturist. 1.17 IRRIGATION The irrigation requirements as specified by the sub-consultant include the supply and installation of temporary irrigation to all new landscape areas as outlined in the irrigation specification. EDAW Aust Page 7 February 2008
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VIRIDIAN III - Landscape Works Tenderers need to provide for the cost to supply and install the complete irrigation system including hardwiring power connections and controller cabinet. Tenderers need not prepare nor submit details of the system with the tender. EDAW Aust Page 8 February 2008
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VIRIDIAN III - Landscape Works
1.18 WARRANTIES
Warranties or guarantees specified shall name the Principal as warrantee. Register with
manufacturers as necessary. Retain copies delivered with any components and equipment
to the Principal.
Warranties and/or guarantees to be submitted to the Builder for transmission to the Principal
within fourteen (14) days after practical completion.
Commence warranty periods at practical completion or at acceptance of installation, if
acceptance is not concurrent with practical completion.
If installation is not by manufacturer, and product warranty is conditional on the
manufacture’s approval of the installer, submit the manufacturer’s written approval of the
installing firm.
1.19 WORKPLACE HEALTH AND SAFETY
The contractor shall comply with all the requirements of the Health and Safety Act 1995.
1.20 VERIFICATION OF SERVICES
The Contractor shall be responsible for the verification of services within and bordering the
site. Service lines are to be marked and brought to the attention of all workers. Any
modification or temporary interruption of services shall have attained permission from
respective utility service authorities.
The Contractor shall be responsible for liaising with the appropriate persons, to organise on
site detection of respective services. Forty-eight hours notice is required for the
organisation of such field personnel.
The Contractor will be held liable for any damage to services resulting form excavation
works.
END OF SECTION
EDAW Aust Page 9 February 2008
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VIRIDIAN III - Landscape Works
2. WEED ERADICATION
2.1.1 GENERAL
Eradicate weeds by environmentally acceptable methods using a non-residual glyphosphate
herbicide in any of its registered formulae, at the recommended maximum rate. Regularly
remove, by hand, rubbish and weed growth that may occur or recur throughout all planted,
mulched, turf, and hardscape areas. Continue eradication throughout the course of the
Works and during the Planting Establishment Period.
Refer Flora Environmental Management Plan Part 2 Section 5.
Weed Eradication Schedule:
Weed type Eradication method or treatment:
Acceptable Unacceptable
All All non-residual herbicides Any residual herbicide
Glyphosphate based,
E.g. Roundup or approved
Equivalent.
END OF SECTION
EDAW Aust Page 10 February 2008
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VIRIDIAN III - Landscape Works 3. BASIC EXCAVATION 3.1 EXCAVATION 3.1.1 GENERAL Refer Civil Engineer for Bulk Earthworks and Excavation. Do not disturb services. Locate all services before commencing any excavation and cultivation. Refer to Civil Engineer for service locations. Excavate / cultivate areas within 500mm of services by hand. 3.1.2 SITE CLEARING All existing vegetation indicated to be retained on drawings is to be protected from damage including associated root systems. Adequately protect from damage all structures and services which are beyond the limits allowed to the subcontractor. Where concrete, diesel oil or any other material harmful to vegetation has been spilt on the topsoil or subgrade, the affected areas shall be excavated and spoil removed from site. Affected areas are to be reinstated to suit final requirements or as directed on site. Remove from site all excavated material resulting from the required earthworks that cannot be reused in the landscape works. Remove from site all vegetative spoil. Do not burn. 3.1.3 LOCALISED EXCAVATION Inspect and carry out soil tests on all existing finished surface soils levels. Maintain and re- structure existing site topsoil soil that is approved by soil test to 300mm. Refer to site topsoil section of specification. For all other areas requiring imported topsoil, excavate and dispose all surplus material to allow for depths required for all landscape elements below: General Planting areas: 300mm General Turf areas: 100mm Tree Planting: Varies for different rootball sizes. Refer planting section in this specification. 3.1.4 SUBGRADE PREPARATION During cultivation, thoroughly mix in any materials to be incorporated into the subsoil. Cultivate manually within 300mm of paths and structures. Remove stones exceeding 25mm, clods of earth exceeding 50mm and any weeds, rubbish or other deleterious material brought to the surface during cultivation. Cultivate the subsoil to all planting and turf areas to a depth of 150mm. 3.1.5 TRIMMING OF SUBGRADE The subgrade shall be shaped to the profile required. The surface of the subgrade shall be compacted, trimmed, profiled and check levelled prior to placing of pavement materials. EDAW Aust Page 11 February 2008
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VIRIDIAN III - Landscape Works
Surface of subgrade shall be left free from rubbish, stones, felled timber and brush, and left
smooth and clean, true to the grade and levels shown on the drawings.
The allowable variation on design level at any point shall be 50 mm provided that all areas
are free draining and no ponding of water occurs.
END OF SECTION
EDAW Aust Page 12 February 2008
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VIRIDIAN III - Landscape Works
4. STORMWATER DRAINAGE
4.1 SUBSOIL DRAINS
4.1.1 GENERAL
Subsoil drainage shall be constructed in accordance with the Drawings and will be ultimately
in accordance with the site engineer’s recommendations and or drawings.
Unless specified otherwise, subsoil drainage trenches shall incorporate geotextile material
lining the trench. In areas where the natural soil could cause blockage of the geotextile
material and the ultimate failure of the Subsoil Drainage system, the Builder may advise the
following if applicable.
The trench shall not incorporate geotextile material.
Alternative subsoil drainage backfill material (in accordance with this specification) shall be
used.
No construction equipment shall stand or travel directly on subsoil drain material or
constructed drains without approval.
Minimum cover for various compactors over the drain shall be unless approved otherwise:
Hand Held Units 100 mm
Units <15 Tonnes 200 mm
Units >15 Tonnes 300 mm
All subsoil drainage shall be connected to the stormwater drainage system.
4.1.2 MATERIAL REQUIREMENTS
Trench backfill material shall be crushed or granular material that conforms to the grading
requirements shown below:
AS Sieve Size (mm) Percentage Passing By Mass
Column 1
19.0 85 - 100
9.5 0 - 20
4.75 0-5
1.18 -
0.30 -
0.15 -
0.075 0-2
Column 1 backfill material may be used in trenches either incorporating geotextile material
or not incorporating geotextile material. This material is consistent with the requirements for
a 20 mm concrete aggregate in accordance with AS 2758.1 - 1985.
EDAW Aust Page 13 February 2008
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VIRIDIAN III - Landscape Works
Drainage pipes and associated fittings and jointing procedures shall comply with the
requirements specified in the following reference:
Plastic pipes (Perforated): AS 2439-Part 1 "Perforated Drainage Pipe and Associated
Fittings"
Perforations shall not exceed 0.7 mm diameter or width.
4.1.3 SUBSOIL DRAINAGE GEOFABRIC MATERIAL
Geotextile material used in subsoil drains shall be a non-woven type and shall have the
following properties prior to exposure to sunlight at the site.
Geotextile strength rating (G) of greater than 900
Flow rate under 100 mm constant head as determined using the Permittivity Test procedures
stated in AS 3706.9 of greater than 501/m2/s.
Equivalent opening size (EOS) of the geotextile as determined using the procedures stated
in AS 3706.7 of less than 200 micro metres for granular soils (i.e., D50s greater than 75 micro
metres) and the EOS of less than 85 micro metres for cohesive soils (i.e., D50s less than
75 micro metres).
4.2 SURFACE DRAINAGE
4.2.1 GENERAL
Field Inlets
Surface drainage pits shall be installed to locations and levels as indicated on the landscape
drawings and confirmed by the site engineer. Finish surface pit level flush with surrounding
surface finish levels. Ensure positive overland drainage flow to all pits and that no ponding
occurs around the pit. Align all pits square to paths, pavement patterns, kerbs, walls and the
like.
Install pit to manufacturer’s recommendations
Product: Aco 450X450 Commercial Drain Sump with Standard HDG (Medium Duty) bolt
down Mesh Grate or approved equal.
END OF SECTION
EDAW Aust Page 14 February 2008
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VIRIDIAN III - Landscape Works
5. EDGING
5.1 TIMBER EDGING
5.1.1 GENERAL
Set edging’s flush with adjoining surfaces to define planting, grass areas or both. Fix to pegs
using galvanized nails, two per fixing. Drive pegs into the ground at 1500 mm centres
maximum on the planting side of the edging and on both sides of joints between boards, with
peg tops 15 mm below the top of the edging.
Joins: Join timber edging where required and reinforce with 75x15x450mm long HW timber
joiner fixed with four galvanized nails.
Supply and install timber structures, furniture and fixtures as following and as per detailed
drawings.
MEMBER SIZE GRADE FINISH
Timber Garden Edge 19 x 90mm CCA Pine Sawn
Timber Stake 45 x 45 x 600 mm CCA Pine Sawn
END OF SECTION
EDAW Aust Page 15 February 2008
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VIRIDIAN III - Landscape Works
6. CONCRETE WORKS
6.1 GENERAL
6.1.1 SCOPE OF WORKS
The landscape contractor shall install the following concrete works as specified on
Landscape Surface Finishes plan;
1. Pedestrian paths, unit paving and banding to roadways as shown
2. Concrete walls as shown on landscape plan, refer to wall specification
3. Concrete in-situ seating as detailed
Refer landscape drawings for finishes only.
6.1.2 SETOUT
Seek approval prior from the Builder on setout prior to commencing any excavation works.
Confirm concrete path formwork setout with Builder prior to the placement of concrete. All
setout to be approved by Landscape Architect in conjunction with builder prior to the
commencement of works.
6.1.3 SUBGRADE
The subgrade is to consist of a firm, uniformly moist surface at the time of placing. Loose
material and debris is to be removed from the surface. Construction equipment is not to be
used on the prepared surface. Compact the subgrade to comply with relevant Australian
Standards.
6.2 MATERIALS AND CONSTRUCTION REQUIREMENTS
6.2.1 GENERAL
Materials and construction requirements for concrete shall be in accordance with Section 19
of Australian Standard AS 3600-2000. Materials used for concrete work shall comply with
Australian Standards listed in Clause 19.1 of AS 3600. All concrete used in this contract
shall be manufactured in accordance with AS 1379 -1997.
All concrete to be incorporated in the works shall be sourced from a Quality Assured Ready
mix Concrete Supplier.
Concrete materials shall be proportioned so that when manufactured in accordance with AS
1379 and transported, placed, compacted, finished and cured in accordance with AS 3600
and this Specification, the hardened concrete will satisfy the design requirements for
strength, serviceability and durability.
6.2.1.1. WORKMANSHIP
Workmanship of concrete works is to be of a high standard and is to match the approved
sample panel near the Sales Centre in colour, texture and consistency and jointing. If part of
the works does not reflect the sample panel, it is to be replaced immediately and approved
before commencing more work.
EDAW Aust Page 16 February 2008
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VIRIDIAN III - Landscape Works
6.2.2 SAMPLE PANELS
To maintain consistency of workmanship, a series of site test sample panels are to be
constructed for approval before commencement of work. Provide a sample panel of no less
in size than 2000x2000 for approval by the Managing Contractor of each concrete pavement
colour and finish. Panels can form a part of the finished work, however, if rejected, must be
completely replace to the satisfaction of the Managing Contractor and at no cost to the
Client.
Panels are to illustrate the following criteria:
Surface placement flatness (do not exceed tolerance to surface placing)
Not to contain any score marks
Consistency of matrix removal and exposure
Pass relevant slip test requirements as stated in this specification
Demonstrate change in colour panels / jointing (Saw cut joints and Expansion
Joints)
Demonstrate change in adjacent finishes
6.2.3 MATERIALS
6.2.3.1. EXPOSED FINISH AGGREGATE MIX
10mm crushed aggregate. Refer to Concrete Finishes Schedule for concrete colour and
aggregate mix.
6.3 CONCRETE STRENGTH CRITERIA
6.3.1 GENERAL
All materials and workmanship, unless otherwise specified, shall be in accordance with
AS3600, SAA Concrete Structural Code and other relevant Australian Standards except as
varied by this document. Where no Australian Standard exists, the relevant American
Standard shall apply.
Concrete herein is specified by the performance of Normal Class Concrete (AS1379) unless
otherwise indicated in the Specification or on the Drawings. Concrete is to be ordered with
the following properties in line with Method A (Ordering of normal class concrete) of AS1379:
• The different grades of concrete to be used are specified by minimum compressive
strength, at 28 days on the relevant drawings. Unless specified otherwise, all
concrete for structures shall have a minimum strength of 25 Mpa.
• All cement is used in the works shall conform to AS3972 for type GP (Portland
cement) and type GB (blended Portland cement) containing 20-25% fly ash.
• All cement used in below ground structures shall be type GB.
• The maximum size of aggregate for all grade of concrete shall be 20 mm.
• The slump for all grades of structural concrete shall not exceed 80 mm.
• The following additional criteria shall be applicable to the grades of concrete
specified.
Location Pavement Type Pavement Type
1A 2A Sub-base
EDAW Aust Page 17 February 2008
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VIRIDIAN III - Landscape Works
Location Pavement Type Pavement Type
1A 2A Sub-base
Grade (Mpa) 25 25
Maximum Aggregate Size 20 20
(mm)
Slump (mm) 80 80
Maximum Total 0.45 0.45
Water/Cement Ratio
Minimum Cement content 360 360
(Kg/m3)
6.4 REJECTION OF CONCRETE
6.4.1 GENERAL
The provisions of Clause 19.1.7 of AS 3600 shall be read in full as part of this Specification.
6.5 REINFORCEMENT
6.5.1 GENERAL
The material and construction requirements for reinforcing steel shall be in accordance with
Clause 19.2 of AS 3600. The reinforcement shall be placed and held in position during a
concreting operation. The tolerance on position of reinforcement shall comply with Clause
19.5.3 of AS 3600. Reinforcement shall be BHP Tempcore or approved equivalent for all
"N" grade reinforcement.
If reinforcing is in storage on the site, it shall be covered to protect it from the weather and
shall be stored off the ground.
The concrete shall have a temperature not higher than 32EC when placed, which shall be
achieved by using the above precautions if necessary.
6.6 JOINTS
6.6.1 GENERAL
Construction joints shall be made where shown on the Drawings and approved by the
engineer or in locations approved by the Builder. In general, concrete pours shall be made
in as large a section as possible to minimise the number of construction joints required.
Where stoppage of concreting operations occurs for any reason, construction joints shall be
placed either horizontally or vertically as needed, provided with keys to resist shear, and
dowels to develop bond as directed by the Builder. All reinforcement shall continue through
construction joints.
Before depositing new concrete against concrete which has hardened, the forms shall be re-
tightened and the surface of the old concrete shall have all loose projecting aggregate,
laitance, and other objectionable substances removed, shall be roughened by scabbling or
other suitable means as required by the Builder, and shall be thoroughly washed and
saturated with clean water.
After excess water has been removed, a layer of cement mortar of similar composition to
that embodied in the new concrete, excluding the large aggregate and of plastic consistency,
about 12 mm in thickness shall be thoroughly broomed and brushed over the prepared
surface and worked into all crevices and depressions after which the new concrete shall be
placed immediately so as to make a thoroughly bonded and watertight joint.
EDAW Aust Page 18 February 2008
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VIRIDIAN III - Landscape Works 6.6.2 CONTROL / CONTRACTION JOINTS Spacing (maximum): P1–2.5m Reinforcing fabric: SL72 Depth: Full depth where constructed using formwork. 1/4 to 1/3 slab thickness where constructed by scoring the plastic concrete, using a proprietary crack-inducing device, or sawing set concrete. Width: 3 mm. Design: Tool off arises to 6 mm radius. 6.6.3 ISOLATION / EXPANSION JOINTS Location: Where slab wider than 1.5 m abuts rigid structures, at path intersections, over structural joints. Spacing (maximum): P1–10.0m Design: Permit free movement of slab, and exclude foreign matter. Do not tool off joint arises abutting the seal. - Joint filler: 10 mm thick cork joint or canal. - Joint depth: Full thickness of slab. Access holes and pits at pavement edges: Thicken the slab 50 mm for 100 mm from the rigid structure (tapering 300 mm), and reinforce the panel(s) containing the rigid structure with SL72 fabric. Install self-levelling polysulphide flexible sealant equal to Sikaflex products in accordance with the manufacturer’s specifications, at pavement surface / expansion joint interface. Colour to match adjacent pavement. Expansion joints shall be installed as indicated on the plans or as specified and to the interface with built and fixed elements. 6.6.4 OTHER JOINTS Dowelled joints: Formed or sawn joints reinforced with dowels and sealed. Tied joints: Formed or sawn joints reinforced with tie bars. Construction joints: Locate to coincide with control or isolation joints. 6.7 SURFACE FINISHES 6.7.1 GENERAL All concrete surfaces shall be true and free from stone pockets, depressions or projections beyond the surface. All arises shall be perfectly sharp and true and all mouldings evenly mitred. Care shall be exercised in removing forms to ensure this result. As soon as the forms are removed, all rough places, holes and porous spots shall be repaired by removing defective work and filling with stiff cement mortar having the same proportions of cement and sand as was used in the concrete, and brought to an even finish. Concrete surfaces shall comply with the following classes set out in Australian Standard AS 3610 Section 3 - Surface Finishes. Applicability of surface class to be Class 2. Top EDAW Aust Page 19 February 2008
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surfaces shall be steel trowed unless otherwise stated. Refer to Section 4.16 PATHS AND
PAVEMENTS for top surface treatments to pavement types.
For Class 2 surfaces blow holes greater than 3mm are not permitted. All exposed surfaces
shall be even and true to shape, free from mortar fins, form marks or other irregularities. All
Class 2 surfaces shall be protected from staining due to mortar runs or splashing,
reinforcement exposure, timber or curing processes.
Any staining to surfaces exposed to view shall be removed by rubbing with a carborundum
block and water until a uniform textured surface is achieved. The paste formed in the
process is to be rubbed off after drying with a dry hessian or canvas.
Plastering and mortar capping to concrete will not be permitted.
6.7.2 UNIT PAVING
Supply and install paving as indicated on the drawings.
Pre-cast Concrete Pavers: All Concrete Pavers shall be sound with straight, sharp arises,
free from distortion and other defects. Pavers shall be of uniform texture and coloured to
match concrete as scheduled. Concrete Pavers shall be cured for at least 28days and shall
conform to the dimensions specified in the Paving Schedule. All Vehicle Grade Pavers to be
installed to Engineers Specification.
6.7.3 BROOM FINISHING
Wood float and broom, using a moistened nylon broom 500 mm wide, across the pavement
to give an even textured slip-resistant surface with steel tooled margins. On gradients
steeper than 10% roughen the surface by scoring across the slope at 50 mm centres.
6.7.4 EXPOSED AGGREGATE
Apply water-based surface set-retarder to formwork. Remove the forms while the concrete
is green. Wet the surface and scrub using stiff fibre or wire brushes, using water freely, until
the surface film of mortar is removed without the use of acid etching, and the aggregate is
very lightly and uniformly exposed. Rinse the surface with clean water. Cure surface
following exposure of the aggregate, curing regime may be an applied spray membrane or
wrap plastic
6.8 FINISHES AND HARDSCAPE SCHEDULE
TYPE COLOUR OXIDE PANEL FINISH
& AGGREGATE
/JOINTING SIZE
Pavement Type P1 TBC N.A. Pedestrian Grade
Pavement Type P2 TBC N.A. Pedestrian Grade
Pavement Type P3 TBC N.A. Vehicular Grade
EDAW Aust Page 20 February 2008
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Pavement Type P4 TBC N.A. Vehicle Grade
Pavement Type P5 TBC Vehicle Grade
Pavement Type P6 TBC Vehicle Grade
Pavement Type P7 Kerb to be N.A. Vehicle Grade
confirmed
Pavement Type P8 Coping to Resort N.A. To Be Confirmed
Pool
Pavement Type P9 Coping to Lookout N.A. To Be Confirmed
Pool
Pavement Type P10 TBC N.A. To Be Confirmed
Pavement Type P11 TBC N.A. To Be Confirmed
EDAW Aust Page 21 February 2008
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VIRIDIAN III - Landscape Works
Pavement Type P12 TBC N.A. Pedestrian Grade
Pavement Type P13 TBC N.A. Vehicle Grade
6.9 SERVICE INFILL COVERS
6.9.1 GENERAL
The Contractor shall align new infill type service covers to reflect the paving pattern and
finished pavement levels. Service cover lids shall be set square to the pavement pattern as
indicate on the drawings or parallel to the kerb alignment where no pavement pattern exists.
Service covers are to be positioned within a single pavement type finish. Refer to Civil detail
and specification for finished levels and cover locations.
The Contractor shall allow for hand and mechanical saw cutting and bedding infill
pavements to suit the respective infill lid types.
END OF SECTION
EDAW Aust Page 22 February 2008
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7. TIMBER WORK
7.1 TIMBER SIZES
Supply and install timber structures, furniture and fixtures as following and as detailed.
TIMBER SEATING TYPE S17 (CUSTOM TIMBER SEATS)
Batten 75 x 50 F14 Kiln Dried Class 1 HWD DAR, 2 Coats
Sikkens HLS & 2
Coats Sikkens Filter
7
BRIDGE AND DECK STRUCTURES
Boardwalk 120 x 35 F17 DECKWOOD TBC
7.2 TIMBER QUALITY
7.2.1 SAWN / DRESSED TIMBER (EXCLUDING DECKING)
All timber shall be hardwood to AS 2082 to the stress grade nominated. Where timber is
specified as ‘appearance’ or dressed grade it shall also meet the requirements of the stress
grade. All timber to be Durability 2 class except where in contract with ground surface where
it shall be Durability Class 1. Any sapwood shall be treated to level H3. All sawn timber to
be branded as complying with the requirements of AHQC (Australian Hardwood Quality
Council).
7.2.2 TIMBER CONNECTIONS
Structural fasteners shall be located in sound timber avoiding timber defects. Fasteners
shall be installed in accordance with Manufacturer’s instructions. All bolts, nuts, washers,
nail plates and brackets to be hot dipped galvanised to AS 1650. Additionally, bolt shanks
and washers bearing against timber shall be protected with Dulux Amercoat 385 applied in
accordance with the manufacturer’s specification and properly cured before installation. Bolt
holes to be 10% greater than the nominal bolt sizes. Position bolts to facilitate tightening.
Coat all bolt shanks with CN Emulsion before installation. Bolts to be snug tight (do not over
tighten). Washers to be placed under all bolt heads (except where cuphead bolts specified)
and nuts.
7.2.3 PROTECTIVE TIMBER COATINGS
Coat end grain of bearers, joists and decking with CN Emulsion. Coat interface between all
timbers with CN Emulsion before assembly. Coat all timbers with 2 coats of CN Oil on all
sides prior to fixing.
7.2.4 TIMBER QUALITY
Only timber species suited to exposed decking will be supplied. Timber shall be graded and
audited under the Australian Hardwood Quality Control Program. At the time of grading, the
bottom and sides of the plank shall conform to Structural Grade No. 2 (for Forest Red Gum
Structural Grade 1) (AS 2082) while the exposed surface of the deckwood shall conform to
the following.
Freedom from the following on the sawn upper face;
Loose and unsound knots
Shakes
Loose Gum Veins
Knot Holes
Termite Galleries
Want, wane and bark
Checks wider than 1mm
EDAW Aust Page 23 February 2008
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VIRIDIAN III - Landscape Works
End splits wider than 1mm
Included bark
Borer holes larger than 3mm
Additionally permitted defects shall not cover more than 15% of the top face.
7.2.5 PRESERVATIVE TREATMENT
Treatment, natural durability classes and combinations thereof shall conform to AS 1604,
TUMA (Timber Utilisation and Marketing Act Qld 1987) and TMA (Timber Marketing Act
NSW 1977). Sapwood shall be treated to Level H3 in accordance with TUMA with copper
azole. A certification of treatment shall be provided.
7.2.6 TOLERANCES
Unless noted otherwise, the actual cross sectional dimensions of the timber may vary from
the dimensions stated by the following;
width +_ 3mm
thickness -0, +2mm
length 0
length (cut to size) +- 5mm
7.3 DECKING TIMBER
Hardwood as per ‘Gatton Sawmilling Company - Deckwood’ profile or EQUIVALENT. Place
in long lengths with no joins in tranverse section of decking.
7.3.1 DECKING STRESS GRADE
F17 on underside. (The appearance requirement for the upper surface is superior to grade
F17)
7.3.2 SURFACE FINISH
The decking shall be gauged on the bottom with the sound sawn face being exposed
uppermost.
7.3.3 DECKING CROSS SECTION
Pencil rounded top edges, receiving scallop from lower side, wedge shaped sides.
7.3.4 DECKING FASTENING
Decking shall be fastened to joist with two fixings. Fixings shall be Galvanised steel No 14
type 17 bugle headed batten screws. Space distances from ends and edges as shown on
the drawing. Screw holes must be both predrilled and precountersunk. Pre-drill with 4.5mm
bit and countersink to allow the bugle head to be flush with the top of the timber. Do not
over countersink as this assists water entry. Screws must be pre-greased to facilitate
driving. Screws may need to be re-driven at completion of the maintenance period after
shrinkage has taken place.
END OF SECTION
EDAW Aust Page 24 February 2008
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VIRIDIAN III - Landscape Works 8. FENCES 8.1 GENERAL SAWN / DRESSED TIMBER: All timber shall be hardwood to AS 2082 to the stress grade nominated. Where timber is specified as ‘appearance’ or dressed grade it shall also meet the requirements of the stress grade. All timber to be Durability 2 class except where in contract with ground surface where it shall be Durability Class 1. Any sapwood shall be treated to level H3. All sawn timber to be branded as complying with the requirements of AHQC (Australian Hardwood Quality Council). TIMBER CONNECTIONS: Structural fasteners shall be located in sound timber avoiding timber defects. Fasteners shall be installed in accordance with Manufacturer’s instructions. All bolts, nuts, washers, nail plates and brackets to be hot dipped galvanised to AS 1650. Additionally, bolt shanks and washers bearing against timber shall be protected with Dulux Amercoat 385 applied in accordance with the manufacturer’s specification and properly cured before installation. Bolt holes to be 10% greater than the nominal bolt sizes. Position bolts to facilitate tightening. Coat all bolt shanks with CN Emulsion before installation. Bolts to be snug tight (do not over tighten). Washers to be placed under all bolt heads (except where cuphead bolts specified) and nuts. TIMBER QUALITY: Timber shall be graded and audited under the Australian Hardwood Quality Control Program. At the time of grading, the bottom and sides of the plank shall conform to Structural Grade No. 2 (for Forest Red Gum Structural Grade 1) (AS 2082) PRESERVATIVE TREATMENT: Treatment, natural durability classes and combinations thereof shall conform to AS 1604, TUMA (Timber Utilisation and Marketing Act Qld 1987) and TMA (Timber Marketing Act NSW 1977). Sapwood shall be treated to Level H3 in accordance with TUMA with copper azole. A certification of treatment shall be provided. SPECIES: Timber shall be selected from the following species. spotted gum tallowwood forest red gum ironbark blackbutt (Qld sourced and vein free) TOLERANCES: Unless noted otherwise, the actual cross sectional dimensions of the timber may vary from the dimensions stated by the following; width +_ 3mm thickness -0, +2mm length 0 length (cut to size) +- 5mm RAILS: Rails fixed to each pier with 2 No. x M12 cuphead bolts. Countersink washer and nut and fill with flexible sealant. Where rails require joining, a ‘Halved lap’ joint shall be used. FENCE PANELS: Fix fence panels to posts with galvanised pressed metal fixings Install panels with 100mm ground clearance. EDAW Aust Page 25 February 2008
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8.2 FENCE TYPE SCHEDULE
TYPE COLOUR & MATERIAL SIZE FINISH
Fence Type Resort Pool Fencing to Refer Architect Refer Architect Detail
F1 Architect’s Detail (JMA) Detail
Fence Type Black Powdercoated Pool Min 1200mm To Be Confirmed
F2 Fencing to Lap and Lookout High, TBC
Pools
Fence Type Fence to Maintenance TBC To Be Confirmed
F3 Residence Courtyard To Be
Confirmed
8.2.1 FENCE TYPE 1 – RESORT POOL FENCING
Refer to Architects Detail and specification for height, size, type and finishes.
8.2.2 FENCE TYPE 2 – LAP AND LOOLOUT POOLS FENCING
Supply and install Fence Type 2 to the locations where shown on drawings. The fence
system shall comprise of tamper proof and corrosion resistant fixtures, including purpose
made accessories necessary for their installation.
To landscape architects detail and specifications. Fence footings to engineer’s details.
Height: To Be Confirmed – Minimum 1200mm high
Style: To Be Confirmed
Finish: To Be Confirmed
8.2.3 FENCE TYPE 3 – MAINTENANCE RESIDENCE COURTYARD FENCE
Supply and install Fence Type 3 to the locations where shown on drawings. The fence
system shall comprise of corrosion resistant fixtures, including purpose made accessories
necessary for their installation.
To landscape architects detail and specifications. Fence footings to engineer’s details.
Height: To Be Confirmed
Style: To Be Confirmed
Finish: To Be Confirmed
END OF SECTION
EDAW Aust Page 26 February 2008
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VIRIDIAN III - Landscape Works 9. WALLS 9.1 GENERAL Supply and install Masonry and Wetstacked Walls, and Rendered finishing to Engineer’s walls as shown on landscape plan and detailed. Refer to Engineer’s specification for all masonry works and footing details. Refer to Landscape Architects details and specification for finishes only. 9.2 WATERPROOFING To AS475, Part 1, Section 2.5 Blockwork and Rendered walls: apply rubberised and reinforced liquid membrane system to all retained sections. Membrane to be chemind ‘newflex’ system or approved equal. Install to manufacturers instruction and as detailed on the drawings. Warranties: provide evidence of all guarantees and warranties. 9.3 STONE WALL FACING AND CAPPING 9.3.1 GENERAL Supply and install stone-faced walls as indicated and detailed on the drawings. 9.3.2 SAMPLES Stone supply: The wet stacked stone walls are to match existing stone walls on site. The contractor shall provide a sample of stone prior to installation for approval by Landscape Architect and Engineer. Placement: The Contractor shall install a 2 x 1m section of wet stacked stone for approval by the Builder. The sample panel may be included in the run of the wall, but is subject to removal if the sample is not approved. 9.3.3 SITE CONDITIONS Ensure that all installation conditions are satisfactory for this work. Ensure that the finished block and stone work is within specified tolerances. 9.3.4 HANDLING PROCEDURES Bends, kinks, cracks, chipped edges or surface marking of panels from mishandling or storing will be sufficient cause for rejection. Immediately after installation the work shall be protected from damage and contamination. 9.3.5 BEDDING AND FIXING Adequately support and restrain the rendering using durable materials. 9.3.6 WORKMANSHIP The Contractor shall obtain all the necessary measurements for the proper carrying out of the work and shall verify it so that this work will cover the area shown on the drawings. All work shall be carried out strictly in accordance with the detail drawings provided. EDAW Aust Page 27 February 2008
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VIRIDIAN III - Landscape Works Special care shall be taken in matching the colour and pattern throughout the entire installation and the Contractor shall select the slabs/blocks whenever necessary to obtain the continuity of similarity of surfaces. Set out work plumb, level and properly bonded. Relay in fresh mortar stonework moved after initial laying. Protect stonework from frost, rain and hot drying winds for not less than 24 hours after laying. Any cutting shall be uniform and edges ground so that all the joints may be made as thin as possible. Check stone on delivery and replace any found marked or damaged. Stones may be rejected for any of the following reasons: • structurally unsound • chipped corners of arises • surface damage or staining • failure to comply with any other quality requirement of the specification All rejected stones shall be removed and replaced. No repair or remedial work shall be permitted except grinding providing that it is within tolerances specified. 9.3.7 CLEANING AND PROTECTION All of the stonemason's work shall be protected from damage in a manner approved of by the Builder until the completion of the contract. Finished surfaces shall be free from mechanical imperfections such as scratches, scrapes and dents, and shall be free from finish imperfections such as spots, stains and streaks. Protect all stonework from the effects of cleaning brickwork by acid. When all other work of a nature likely to soil stone work is finished, and when directed by the Builder, the Contractor shall wash and thoroughly clean down all the stonework leaving it free from stains and discolouration and in a perfect condition. Care shall be taken to protect adjacent finishes while stone is being cleaned. 9.3.8 ANTI GRAFITTI PROTECTION Requirement: The Contractor shall organise the supply and placement of the nominated sealant strictly in accordance with the Suppliers specification by a Certified Installer of the specified product. 1. Product: Gracedom Pty Ltd - 835 'Surface Veil' hard sealer. Apply to the following surfaces: • All stone / concrete seating, wall type W1 and wall type W2. Contact: Mark Ruth 0413 727 135 or [email protected] Application: Strictly in accordance with the manufacturer’s specification applied as a two (2)- coat system each of minimum 50 and maximum 60 micron wet film thickness. The Contractor shall ensure all surfaces to be sealed are clean and suitably prepared to accept sealant. EDAW Aust Page 28 February 2008
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9.4 WALL TYPES SCHEDULE
TYPE PRODUCT PANEL FINISH
/JOINTING SIZE
Wall Type W1 Wet Stacked Yellow To Be Confirmed To Be Confirmed
Stone Wall
Wall Type W2 Rendered Wall To Be Confirmed To Be Confirmed
END OF SECTION
EDAW Aust Page 29 February 2008
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10. DRAINAGE SWALES
10.1 ROCK PLACEMENT
10.1.1 GENERAL
The Landscape Contractor will be responsible for gravel swales under storm water outlets
off buildings, storm water sheet run-off from buildings, and landscape swales as indicated on
the landscape drawings. All other swales by Civil Contractor.
Supply and install river rock as indicated on the drawings. Refer to Landscape Plans for
placement.
Place existing site boulders to edge of swale as per Builder’s instruction on site. Refer to
landscape plans for reference. Do not obstruct water flow with retaining boulders. All works
to be setout and approved by Landscape Architect and Engineer prior to installation.
10.2 GRAVEL SWALES
10.2.1 GENERAL
Install gravel swales to locations adjacent buildings for sheet water run-off as shown on the
landscape drawings and detail. Excavate localised drainage swale for visual appearance.
Ensure ponding does not occur. Grade surrounding areas to dissipate water away from
drainage swales to avoid catchment of large volumes of water.
10.2.2 STORM WATER COLLECTION PITS
Install storm water collection pits to base of storm water pipes as per the landscape
drawings and detail. Collection pits will be suitably sized to hold water volumes as per
engineer’s detail.
10.3 RIVER ROCK PLACEMENT
10.3.1 GENERAL
Supply and install river rock to engineer’s specification as indicated on the drawings. Refer
to Landscape Plans for placement.
10.3.2 ROCK TYPE
100-200mm Dressed River Gravel
10.4 BOULDER PLACEMENT
10.4.1 GENERAL
Site boulders will be supplied from storage off-site by the Principle. Landscape Contractor
responsible for placement and installation of boulders once on site. Place boulders to
locations as specified by landscape drawings, and as per instructions on site by builder or as
deemed necessary on site by builder or engineer to stabilise slope.
END OF SECTION
EDAW Aust Page 30 February 2008
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VIRIDIAN III - Landscape Works 11. STRUCTURES, FURNITURE AND FIXINGS 11.1 GENERAL The Contractor shall be responsible for the supply and installation of structures, furniture and fixings in accordance with the plans and details. 11.2 QUALITY 11.2.1 INSPECTION Witness points Give sufficient notice so that inspection may be made of the following: • Bench seats prior to fixing. • Rubbish bins by architect, prior to fixing. • Street sign locations prior to fixing. • Bollards prior to fixing. 11.3 STRUCTURES AND FURNITURE 11.3.1 GENERAL The Contractor shall confirm all furniture locations with the Builder prior to fixing. Expanding masonry anchors shall not be used. All fixings shall be marine grade stainless steel. Damage to finishes shall be rectified at the Contractor’s expense. Shop drawings to all structures to be confirmed and reviewed by landscape architect and engineers before commencement of works. 11.3.2 TIMBER FURNITURE All timber furniture’s to use timber as specified (refer timber specification). Refer to Landscape drawings for locations and finishes (to be confirmed), refer to landscape detail. Materials: All timber CCA treated Hardwood durability class 2 or better free from splits, knots and other defects. All exposed edges are to be arissed to 10mm and sanded to a round edge. Any damage to all finishes shall be rectified at the Contractors expense. Clean down furniture and pavements on completion. 11.4 STRUCTURES AND FURNITURE TYPE SCHEDULE TYPE COLOUR & MATERIAL SIZE FINISH EDAW Aust Page 31 February 2008
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VIRIDIAN III - Landscape Works Seat Type S1 Timber Bicycle Rack Stainless Steel To Be Confirmed NSC Standard Type S2 Bin Type S3 Stainless Steel To Be Confirmed NSC Standard Nesting Boxes Natural To Be Confirmed To Be Confirmed Type S4 11.4.1 S1 TYPE – TIMBER SEATING 11.4.2 S2 TYPE – BICYCLE RACKS 11.4.3 S3 TYPE – BINS . 11.4.4 S4 TYPE – NESTING BOXES 11.5 BALUSTRADES, HANDRAILS AND BOLLARDS 11.5.1 GENERAL Refer Landscape Details and specification to treatment, finish and fixings to all balustrades, bollards and handrails. 11.6 BALUSTADES, HANDRAILS AND BOLLARDS SCHEDULE TYPE COLOUR & MATERIAL SIZE FINISH BALUSTRADE / HANDRAIL Balustrade Vehicle Grade Balustrade by Refer to To Be Confirmed Type B1 Engineer engineers detail Balustrade Custom Timber and To Be Confirmed To Be Confirmed Type B2 Stainless Steel EDAW Aust Page 32 February 2008
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VIRIDIAN III - Landscape Works Balustrade Custom Timber Pedestrian To Be Confirmed To Be Confirmed Type B3 Balustrade BOLLARD Bollard Type Timber Bollard Refer to detail To Be Confirmed B4 11.6.1 B1 TYPE – VEHICULAR GRADE BALUSTRADE BY ENGINEER Refer to engineers detail and specification 11.6.2 B2 TYPE – TIMBER AND STAINLESS STEEL BALUSTRADE Custom Hardwood Timber and Stainless steel balustrade with handrail (B2). Stainless steel marine grade 416. Support plate: 8mm welded internally. Joins: Make all smooth all welding between handrail and stanchion post. Base plate: 150x150x8mm stainless steel base. Refer to detail. Structural engineer’s for base detail. 11.6.3 B3 TYPE – CUSTOM TIMBER PEDESTRIAN HANDRAIL Timber handrail as detailed to Australian Standards. All timber to be treated as specified (refer to timber specification). 11.6.4 B4 TYPE – BOLLARD Treated timber bollard shaped as per detail. Concrete footing to engineers detail or specification. Requirements: Install bollards at the locations shown on the drawings. Materials: All timber CCA treated Hardwood durability class 2 or better free from splits, knots and other defects. All exposed edges are to be arissed to 10mm and sanded to a round edge. Finish all timberwork with 2 coats CN oil at Practical Completion and end of maintenance period. 11.7 KOALA POLES 11.7.1 GENERAL Koala poles to be installed to match existing to locations as determined by EMP and Builder on site. Interval distance to be 10m. Refer EMP for all specifications. Materials: 250mm diameter round timber poles, length to vary as per location. All timber CCA treated Hardwood durability class 2 or better free from splits, knots and other defects. All exposed edges are to be arissed to 10mm and sanded to a round edge. EDAW Aust Page 33 February 2008
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VIRIDIAN III - Landscape Works
Fasten poles to engineer’s retaining walls as per engineer’s specification.
END OF SECTION
12. TOPSOIL
12.1 SUBSOIL
Stockpiled subsoil mix to be used as is. Spread evenly 100mm subsoil mix over the
prepared subgrade areas. Services and roots: Do not disturb services or existing tree roots.
If necessary, cultivate these areas by hand.
Cultivation: Thoroughly mix in materials required to be incorporated into the subsoil.
Cultivate manually within 300mm of paths or structures. Remove stones exceeding 25mm,
clods of earth exceeding 50mm, and weeds, rubbish or other deleterious material brought to
the surface during cultivation. Trim the surface to design levels after cultivation.
12.2 IMPORTED TOPSOIL
12.2.1 STANDARDS
Topsoil shall comply with this specification and AS 4419 (1998) `Soils for Landscaping and
Garden Use’.
12.2.2 INTERPRETATION
DEFINITIONS
Topsoil: Soil that contains the following characteristics:
Contains organic matter.
Supports plant life.
Free from unwanted matter.
Unwanted matter (in topsoil):
Stones over 25 mm diameter.
Clay lumps.
Weeds and tree roots.
Sticks and rubbish.
Material toxic to plants.
Imported topsoil:
Fine: Clay loam, fine sandy loam, sandy clay loam, silty loam, loam.
Medium: Sandy loam, fine sandy loam.
Coarse: Sand, loamy sand.
Topsoil mixture: Topsoil and compost or other additives, thoroughly mixed before placing.
EDAW Aust Page 34 February 2008
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VIRIDIAN III - Landscape Works
Fasten poles to engineer’s retaining walls as per engineer’s specification.
END OF SECTION
12. TOPSOIL
12.1 SUBSOIL
Stockpiled subsoil mix to be used as is. Spread evenly 100mm subsoil mix over the
prepared subgrade areas. Services and roots: Do not disturb services or existing tree roots.
If necessary, cultivate these areas by hand.
Cultivation: Thoroughly mix in materials required to be incorporated into the subsoil.
Cultivate manually within 300mm of paths or structures. Remove stones exceeding 25mm,
clods of earth exceeding 50mm, and weeds, rubbish or other deleterious material brought to
the surface during cultivation. Trim the surface to design levels after cultivation.
12.2 IMPORTED TOPSOIL
12.2.1 STANDARDS
Topsoil shall comply with this specification and AS 4419 (1998) “Soils for Landscaping and
Garden Use’.
12.2.2 INTERPRETATION
DEFINITIONS
Topsoil: Soil that contains the following characteristics:
= Contains organic matter.
= Supports plant life.
= Free from unwanted matter.
Unwanted matter (in topsoil):
= Stones over 25 mm diameter.
= Clay lumps.
= Weeds and tree roots.
= Sticks and rubbish.
= Material toxic to plants.
Imported topsoil:
= Fine: Clay loam, fine sandy loam, sandy clay loam, silty loam, loam.
= Medium: Sandy loam, fine sandy loam.
= Coarse: Sand, loamy sand.
Topsoil mixture: Topsoil and compost or other additives, thoroughly mixed before placing.
EDAW Aust Page 34 February 2008
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12.3 CHARACTERISTICS
All topsoil shall have the following general characteristics:
Texture to be medium to fine friable loam.
Saturated soils will not be accepted.
Nitrogen Drawdown Index (NDI) – testing of soil to be carried out to confirm organic
materials in the soil mix have been fully composted (comply with AS 4419, clause
5.12).
All mixes to be mechanically screened to comply with AS 4419, clause 5.15 and
thoroughly blended to provide a uniform distribution of particles.
Limit the use of components that display high shrinkage tendencies (i.e. Bagasse,
Paper Mulch, spent Mushroom Compost, etc).
No strong odours to persist once materials are spread and watered.
No sharp items or chemical components deemed as dangerous to health or safety to
be present i.e., metal, glass;
Free from damaging levels of phenolic and tannic toxins - Refer AS 3743 Appendix
E;
Soil must comply with toxicity index criteria as stated in AS 4419 clause 5.11 and
Appendix F;
Vegetative reproductive material shall be absent. The Contractor shall also confirm in writing
that the topsoil does not contain “Nutgrass” (Cyperus rotundus). If the weed is present, the
Contractor shall notify the Builder immediately with recommendations for its complete
removal. Remove the weed by the approved method.
Soils must not contain chemicals that will result in contamination of land (e.g. heavy
metals, hydrocarbons, pesticides, etc).
Soils must not contain fire ants or nesting material.
Composted organic matter for native plants should be low in phosphorous such as
fully composted slash-pine bark.
Aged of composted cellulose, paper waste, umcomposted organic matter, ash and
coalstone is to be excluded from soil blends.
12.4 TOPSOIL STORAGE
If it is necessary to stockpile topsoil on site do so in locations as directed by the Builder, to
heights not exceeding 900 mm. Protect from wind.
12.5 TOPSOIL TYPES
All topsoil must meet the requirements of the Interim Australian Standard for ‘Soils for
Landscaping and Garden Use’, AS4419 (Int) – 1996 free from stones, weeds, sticks, roots,
rubbish and any material toxic to plant growth.
EDAW Aust Page 35 February 2008
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VIRIDIAN III - Landscape Works
12.3. CHARACTERISTICS
All topsoil shall have the following general characteristics:
= Texture to be medium to fine friable loam.
= Saturated soils will not be accepted.
= Nitrogen Drawdown Index (NDI) — testing of soil to be carried out to confirm organic
materials in the soil mix have been fully composted (comply with AS 4419, clause
5.12).
= All mixes to be mechanically screened to comply with AS 4419, clause 5.15 and
thoroughly blended to provide a uniform distribution of particles.
= Limit the use of components that display high shrinkage tendencies (i.e. Bagasse,
Paper Mulch, spent Mushroom Compost, etc).
= No strong odours to persist once materials are spread and watered.
= No sharp items or chemical components deemed as dangerous to health or safety to
be present i.e., metal, glass;
= Free from damaging levels of phenolic and tannic toxins - Refer AS 3743 Appendix
E;
= Soil must comply with toxicity index criteria as stated in AS 4419 clause 5.11 and
Appendix F;
Vegetative reproductive material shall be absent. The Contractor shall also confirm in writing
that the topsoil does not contain “Nutgrass” (Cyperus rotundus). If the weed is present, the
Contractor shall notify the Builder immediately with recommendations for its complete
removal. Remove the weed by the approved method.
= Soils must not contain chemicals that will result in contamination of land (e.g. heavy
metals, hydrocarbons, pesticides, etc).
= Soils must not contain fire ants or nesting material.
= Composted organic matter for native plants should be low in phosphorous such as
fully composted slash-pine bark.
= Aged of composted cellulose, paper waste, uncomposted organic matter, ash and
coalstone is to be excluded from soil blends.
12.4 TOPSOIL STORAGE
If it is necessary to stockpile topsoil on site do so in locations as directed by the Builder, to
heights not exceeding 900 mm. Protect from wind.
12.5 TOPSOIL TYPES
All topsoil must meet the requirements of the Interim Australian Standard for ‘Soils for
Landscaping and Garden Use’, AS4419 (Int) — 1996 free from stones, weeds, sticks, roots,
rubbish and any material toxic to plant growth.
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Topsoil mix Type “A” - Imported Topsoil ‘Sandy Loam’
Topsoil mix Type “B” - Imported Topsoil – ‘Sand’ to USGA requirements.
12.5.1 TOPSOIL APPLICATION SCHEDULE
Location Type Depth (mm)
Mass Planting Type A 300 unless noted otherwise
Native grass sprigging areas Type A 50mm unless noted otherwise
Turf Type B 100mm
12.6 PLACING TOPSOIL
General: Spread the topsoil on the prepared subsoil and grade evenly, making the
necessary allowances to ensure that finished levels and contours may be achieved after
light compaction.
Where topsoil is installed by pump, ensure that temperature of soil as cooled as required
before planting is installed. All topsoil should be pumped in accordance with Australian
Standards. Do not plant into soil that does not meet relevant standards for planting as
outlined in this specification.
12.6.1 CONTAMINATION
Where diesel oil, cement or other phytotoxic material has been spilt on the subsoil or topsoil,
excavate the contaminated soil, dispose of it off the site, and replace it with imported topsoil
to restore design levels.
12.6.2 FINISHING
Feather edges into adjoining undisturbed ground.
12.6.3 CONSOLIDATION
Compact lightly and uniformly in 150 mm layers. Avoid differential subsidence and excess
compaction and produce a finished topsoil surface that has the following characteristics:
Finished to design levels.
Smooth and free from stones or lumps of soil.
Graded to drain freely, without ponding, to catchment points.
Graded evenly into adjoining ground surfaces.
Ready for planting.
12.6.4 TOPSOIL DEPTHS
Spread imported topsoil to planting areas to depths as specified in the Topsoil Application
Schedule.
12.6.5 STORAGE OF TOPSOIL
Stockpiling on site if required should ensure that the material is not contaminated with other
surface finish materials. Ensure no air pockets are present in the soil that will assist in the
promotion of plant disease.
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12.6.6 FERTILISER
Deliver fertiliser to the site in sealed bags, branded with type and manufacturer.
Fertiliser type and application shall be as follows:
TURF: An approved complete lawn fertiliser applied at the manufacturers recommended
rate. Mix the fertiliser thoroughly into the topsoil prior to placing turf or as directed. Submit
the fertiliser type and rate to the Managing Contractor for approval.
PLANTING BEDS: An approved prolonged release type having an NPK ratio of 6.3:1.8:2.8.
Place around the root ball of plants at the time of planting at the rate shown below.
For plants to 5 litre size: 20g per plant
For plants to 10 litre size: 40g per plant
For plants 25-45 litre size: 60g per plant.
For larger plants: 90g per plant or as directed by manufacturer.
END OF SECTION
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VIRIDIAN III - Landscape Works
12.6.6 FERTILISER
Deliver fertiliser to the site in sealed bags, branded with type and manufacturer.
Fertiliser type and application shall be as follows:
TURF: An approved complete lawn fertiliser applied at the manufacturers recommended
rate. Mix the fertiliser thoroughly into the topsoil prior to placing turf or as directed. Submit
the fertiliser type and rate to the Managing Contractor for approval.
PLANTING BEDS: An approved prolonged release type having an NPK ratio of 6.3:1.8:2.8.
Place around the root ball of plants at the time of planting at the rate shown below.
= For plants to 5 litre size: 20g per plant
= For plants to 10 litre size: 40g per plant
= For plants 25-45 litre size: | 60g per plant.
= For larger plants: 90g per plant or as directed by manufacturer.
END OF SECTION
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13. MULCH
13.1 ORGANIC MULCH
13.1.1 INTERPRETATION
Mulch is to be free of deleterious and extraneous matter such as soil, weeds and sections of
timber. Use organic mulches, which are free of stones. All organic mulches shall be
composted prior to delivery and spreading on-site.
13.1.2 APPLICATION
Spread mulches evenly to 100mm depth or as otherwise noted on the Drawings. Finish
25mm below surrounding finished levels or as detailed. Grade the finished surface evenly
between design surface levels.
Place mulch clear of plant stems, and rake to an even surface flush with the surrounding
finished levels. Spread and roll mulch so that after settling, or after rolling, it is smooth and
evenly graded between design surface levels sloped towards the base of plant stems in
plantation beds, and not closer to the stem. Mulch all trees located within grass areas with a
1500mm dia mulch ring to base of tree. Ensure trunk is clear of mulch.
13.1.3 MULCH TYPE
Organic mulch – 100mm depth – finely blended forest mulch to NSC standard.
Sample to be approved by Landscape Architect.
END OF SECTION
EDAW Aust Page 38 February 2008
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VIRIDIAN III - Landscape Works 14. PLANTING WORKS 14.1 GENERAL Supply the scheduled number of plants to the quality, size and health in accordance with this specification and Plant Schedule. Plants shall be secured in sufficient time to ensure they achieve specified sizes and quality for the Contract. The Builder must be informed immediately if any difficulty is encountered in procuring the plants on the nursery site at which they are to be stored, and clearly labelled as being for this project. The allocated plants must also be made available to the Landscape Architect to be inspected at all times. Photographic evidence of all species is required 4 weeks after Contract has been let. Photographs must contain at least two plants / trees per species including a measuring staff or other measuring devices illustrating height and spread of individual species. 14.2 SPECIAL REQUIREMENTS All plant stock is to conform with the criteria outlined in the NATSPEC Guide: Specifying Trees. Attain all plant stock from a QALI registered supplier with an Australian Standards Approved Quality Assurance System. The nurseries location must be situated within 100km radius of Noosa and inspection of all plant stock shall take place at one location only. Alternatively, the Contractor shall reimburse the Landscape Architect for time and travel to inspect the plant material. The Contractor shall be suitably qualified to certify all plant stock. It is recommended that a Noosa Council approved arborist certify all trees 45L and above to avoid replacement at final inspection. Is so please provide written certification by arborist. 14.3 EXCAVATING FOR PLANTING Planting Areas: Excavate a hole for each plant large enough to provide not less than 200mm of topsoil round the root system of the plant, or as shown on the Drawings. Planting of Trees: Excavate a hole a minimum 300mm wider than the rootball and cultivate site topsoil to a depth of 200mm below. Loosen compacted sides of the hole, as necessary to prevent confinement of root growth to the hole. 14.4 PLANTING 14.4.1 GENERAL Set out plant material in positions and quantities as shown on planting plans unless otherwise directed. If it appears necessary for plants to cover the area more uniformly, or for similar reasons, notify the Landscape Architect for instruction and direction. Planting holes shall be prepared not more than twenty four (24) hours in advance of planting. A slow release tablet form of fertiliser is preferred, 'Agriform' or equivalent. Apply tablets at the rate and depth of the manufacturer's recommendation. Water plants in containers immediately prior to planting. Plant to approved set out and detail, refer to Planting Plan and appropriate details. Ensure that the topsoil level of the plant root ball is 20mm below the finished surface of the soil surrounding the hole by backfilling as required. Where root growth has been restricted in the container, the outside roots shall be lightly teased prior to planting. Care should be taken to ensure that roots are not exposed to drying influences such as sun or wind. Avoid leaving air pockets in backfill by carefully firming soil progressively. Water all plants thoroughly after planting, and for the duration of the establishment/maintenance period, to EDAW Aust Page 39 February 2008
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VIRIDIAN III - Landscape Works ensure the establishment of each plant. Remove and dispose of all identification labels delivered with plant material. Advise the Builder immediately, if there is any evidence of soil or drainage conditions considered detrimental to the growth of the plant material. Similarly, in accordance with accepted horticultural practice, planting should cease if severe adverse weather conditions, for example dry soil, flooding, strong winds etc., prevail. 14.4.2 PLANT CONTAINERS General: Supply plants in weed-free containers of the required size. Potting-on: Do not carry out potting-on. 14.4.3 STORAGE Deliver plant material to the site on a day to day basis, and plant immediately after delivery. 14.4.4 HARDENING OFF All stock shall be grown in open areas which are exposed to the sun and wind to promote vigorous plant growth and to harden plants off. For a minimum of eight (8) weeks prior to delivery, all plants shall be grown in open areas receiving a minimum time of 75% full sun. Watering and fertilising of plants shall be gradually reduced for a similar time period leading up to delivery to aid in hardening of plants. 14.4.5 ACCLIMATISATION If plants are being grown / propagated outside a 100km radius of Noosa move all plant stock to a Nursery within this radius so that the plants may become acclimatised for a period of not less than (8) weeks prior to date of delivery. The plants must all be hardened off in accordance with the above clause. 14.4.6 SAMPLES Root Conditions of plants may be determined by removing plants from their containers and inspecting them. Where it is decided to remove the soil from the roots of any plants, the number so disturbed will not exceed 1% of the total of each of the species or variety where the number specified exceeds one hundred (100), or one sample if the number is less than one hundred (100). 14.4.7 DEFECTIVE SAMPLES If samples so inspected are found to be defective, the entire line represented by the defective samples may be rejected. All plants rendered unsuitable as a result of this inspection will be considered as samples on which payment cannot be claimed. 14.4.8 SIZE AND FORM REQUIREMENTS All tree planting stock shall conform with NATSPEC Guide: Specifying Trees. At the time of delivery all plants shall conform with the specified minimum size and nominated container size, confirmed in the Plant Schedule. Plants shall be grown, maintained and fertilised to produce a specimen at delivery conforming with the detail and description contained in the Plant Schedule. 14.4.9 PRODUCTION AND MAINTENANCE GENERALLY The plants shall be watered, fertilised, and treated for pests and diseases all as necessary to maintain continuing healthy growth. All plants must have the approval of the Landscape Architect before delivery to site. EDAW Aust Page 40 February 2008
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VIRIDIAN III - Landscape Works 14.4.10 MAINTENANCE IN TRANSIT All plant material must be protected from the adverse effects of the elements during handling and transport. Plants shall be transported in fully enclosed pan technician type trucks. During transit from the nursery to the site, monitor the plants to ascertain that undue movement or disturbance is not occurring and that moisture levels are suitable to ensure plant health. 14.4.11 LOCATIONS If it appears necessary to vary plant locations and spacing’s to avoid service lines, or to cover the area uniformly, or for other reasons, seek approval from Landscape Architect before vary plant locations. 14.4.12 PLANTING CONDITIONS Do not plant in unsuitable weather conditions such as extreme heat, cold, wind or rain. In other than sandy soils, suspend excavation when the soil is wet, or during frost periods. Refer to Plant Specification for palm requirements. 14.4.13 WATERING Thoroughly water the plants before planting, immediately after planting, and as required to maintain growth rates free of stress. 14.4.14 PLACING Remove the plant from the container with minimum disturbance to the root ball, ensure that the root ball is moist and place it in its final position, in the centre of the hole and plumb, and with the top soil level of the plant root ball level with the finished surface of the surrounding soil. 14.4.15 FERTILISING Pellets: In planting beds and individual plantings, place fertiliser pellets around the plants at the time of planting in accordance with the Horticulturist’s fertilising regime 14.4.16 SPRAYING REPORTING: Report any evidence of insect attack or disease amongst plant material immediately it is noted. SPRAYING: If so directed, spray with an insecticide and/or fungicide approved prior to use, in accordance with manufacturer's recommendations, and to comply with statutory requirements. 14.5 TREE SURGERY 14.5.1 GENERAL PROTECTION: This site is within a Tree Protection Zone and prior approval from the Managing Contractor is required before any actions are taken which impact on existing trees. NOTICE: Give sufficient notice before commencing tree surgery. QUALIFICATIONS: Employ suitably qualified Arborist to carry out tree surgery work in a safe and progressive manner. 14.5.2 PRUNING GENERAL: Comply with the recommendations of AS 4373. All pruned native vegetation material to be chipped into pieces no larger than 75mm. Cuttings to be mulched and stockpiled for reuse as directed by the Managing Contractor. EDAW Aust Page 41 February 2008
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VIRIDIAN III - Landscape Works
OPERATIONS: Remove dead and decayed wood or limbs that have been broken. Make
cuts into live wood. If the trees show signs of deterioration after the work has been done,
carry out a program of feeding or soil amelioration such as soil aeration, irrigation or
incorporation of organic material. Continue this program until the end of the planting
establishment period.
PRECAUTIONS: Avoid damage to trees being treated or to nearby trees and surroundings.
Do not use trees as anchors for winching operations or bracing. Provide bracing as
necessary before cutting to prevent uncontrolled breakages and damage to surroundings.
DRESSING: Prevent incursion of rot or disease after cutting.
14.6 PLANT MATERIALS
All tree planting stock shall conform with NATSPEC Guide: Specifying Trees.
Calliper: Measured at 300 mm above ground.
Size index: Product of height (m) x calliper (mm).
The Contractor shall supply and plant the following plants to the minimum requirements as
outlined below:
EX-GROUND - Shall be ex-ground suitably pre-prepared well formed specimen hand
selected with clear trunk and well developed with minimum height and spread as specified
on the schedule. Ball & burlap prior to transplantation.
400 LITRE- Shall be in an approved container with a volume no less than 400 litres (or
equivalent 800x 970mm plastic bag) with minimum height and spread as specified on the
schedule.
200 LITRE - Shall be in approved container with a volume no less than 200 litres (or
equivalent 660x 720mm plastic bag) with minimum height and spread as specified on the
schedule.
45 LITRE – Shall be in a minimum 45 litre (plastic bags 420mm diam x 450mm or equal)
with minimum height and spread as specified on the schedule.
300mm CONTAINER – Shall have a strong primary stem and secondary branches if
applicable and shall be in a container 300mm x diam x 350mm. Minimum plant height to be
600mm unless otherwise specified.
200mm CONTAINER – Shall have a strong primary stem with well developed secondary
growth. Minimum height 450mm unless otherwise specified.
140mm CONTAINER – Shall have a strong primary stem with developing secondary shoots.
Shrubs shall be a minimum of 300mm high.
All plants will have the following characteristics:
- Large healthy root systems, with no evidence of root curl, restriction or damage.
- Vigorous, well established, free from disease and pests, of good form consistent with
the species or variety.
- Hardened off for wind conditions, not soft or forced, and suitable for planting in the
natural climatic conditions prevailing at the site.
- Maximum variation in crown bulk on opposite sides of stern axis: 20%
14.7 STAKES AND TIES
14.7.1 REQUIREMENT – CONTAINER TREES
Provide hardwood stakes that are straight, free from knots or twists, pointed at one end.
Drive stakes into the ground at least one third of their length, avoiding damage to the root
system.
Remove all nursery stakes and ties at installation of all plant stock.
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VIRIDIAN III - Landscape Works
Stake Sizes:
For plants > 2.5 m high: Three 50 x 50 x 2400 mm stakes per plant.
For plants 1 - 2.5 m high: Two 50 x 50 x 1800 mm stakes per plant.
For plants < 1 m high: One 38 x 38 x 1200 mm stake per plant.
Ties:
Provide ties fixed securely to the stakes, one tie at half the height of the main stem, others
as necessary to stabilise the plant.
Tie types:
50 mm hessian webbing installed and stapled to the stake. Ties shall be fastened to
adequately restrain the tree without causing damage to the trunk. Ensure ties allow provision
for trunk growth. Remove existing nursery ties.
14.8 EXISTING SERVICES PROTECTION
Protect and do not disturb existing inground services. Should a conflict arise with the
rootball location / size the Builder shall be advised immediately for direction.
END OF SECTION
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VIRIDIAN III - Landscape Works 15. MAINTENANCE 15.1 HARD AND SOFTSCAPE ESTABLISHMENT PERIOD The work contained in this section comprises the establishment maintenance and defects liability of all works executed under this contract. Maintain the contract areas for a period of 26 weeks after the date of Practical Completion. Maintenance of the works prior to the date of Practical Completion shall not be included in this period. Complete maintenance works schedules and submit to the Builder as a record of the maintenance activities. Promptly make good any defects or damage resulting from defective construction, materials or workmanship to the complete satisfaction of the Builder during this period. In the event of any failure to rectify defective work the Builder may instruct that the work be carried out by another company, the cost of which will be charged to the Contractor. 15.1.1 WATERING Implement an appropriate hand watering regime to supplement the irrigation (off tank) system if required, or in times when the irrigation system is being maintained or has failed. The Contractor shall monitor the irrigation system as an integral part of the maintenance program. Frequency: Weekly or as required. 15.1.2 WEEDING During the Contract period remove weed growth that occurs throughout all contract areas. This shall be executed regularly so that at weekly intervals (at least) the landscape contract areas may be observed in a completely clean and tidy condition, free from rubbish and weeds. 15.1.3 PLANT / TREE REPLACEMENT Immediately replace plants / trees that die or fail to thrive, are damaged or stolen, with plants of the same species and of similar size and quality, unless otherwise specified. Replacement plant material shall have the maintenance period extended in accordance with the Contract conditions. Frequency: as required 15.1.4 STAKES AND GUYS Adjust and/or replace stakes and ties where required. Remove staking and guying when instructed by the Builder Frequency: monthly EDAW Aust Page 44 February 2008
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VIRIDIAN III - Landscape Works 15.1.5 PRUNING Do not prune tree stocks. In the event of pruning or tree surgery a qualified Noosa Shire Council approved arborist shall undertake these works at the approval of the Builder. 15.1.6 MULCHED SURFACES Organic Mulch: Mulched surfaces are to be kept clean and tidy and free of any deleterious material and foreign matter. Reinstate depths to a uniform level of 100mm with organic mulch equal to medium grade hoop pine bark mulch, free of any wood material impregnated with CCA or similar toxic treatment. Frequency: monthly 15.1.7 PEST AND DISEASE CONTROL Spray for pests and disease infestations when the pest and fungal attack has been positively identified and when their populations have increased to a point that will become detrimental to plant growth. Apply all pesticides to manufacturer's directions. All safety controls shall be implemented prior to chemical spraying and site administration notified of the intent to spray. Frequency: weekly inspection 15.1.8 FERTILISING Apply a balance of man made and natural slow release fertiliser to all planting areas. A slow release fertiliser equal to Nutricote or other granular fertiliser (e.g. Osmocote), 3 month formulation, 16 - 4. 4- 8.3 NPK should be used as well as a natural fertiliser such as Dynamic Lifter or equal. The fertilising program shall be determined on the basis of the periodic soil test results, and amended as necessary. Soil tests shall be carried out by the contracts on a 2 monthly basis. Generally check for signs of nutrient deficiencies (yellowing of leaves, failure to thrive), and adapt fertiliser regime to suit. Fertiliser should be applied at the beginning and the end of the (summer) growing season. 15.1.9 SOIL MIXES Soil depths are to be maintained at the specified depths. Replenish any areas of subsidence with topsoil equal to that nominated in the Specification. 15.1.10 SUBSOIL DRAINS Ensure drains are working in an efficient manner, free from sediment build-up, litter and obstructions. Flush out and clean drain as required: Reinstate damaged or sunken drains. EDAW Aust Page 45 February 2008
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VIRIDIAN III - Landscape Works
15.1.11 FURNITURE
Secure and retighten all bolt and screw fixings, replace if necessary broken or missing
fixings with those specified.
All furniture shall be recoated with applied finishes prior to the final certificate / handover
being issued.
15.1.12 MAINTENANCE SCHEDULE AND LOG BOOK
Use the enclosed schedules as a minimum maintenance program and recording process.
Record when and what maintenance work has been done and what materials, including
toxic materials, have been used.
15.2 COMPLETION
Notwithstanding anything to the contrary of the Contract, the Builder may instruct to perform
urgent maintenance works.
Trees and shrubs shall show signs of healthy vigorous growth and be free from disease and
not exhibit signs of stress. Trees shall be appropriately staked.
Top up mulch levels prior to handover.
END OF SECTION
EDAW Aust Page 46 February 2008
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