Viridian III Technical Specification OPW1 [As Published] · 142008.256

                                                                          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:
   ƒ           Surface placement flatness (do not exceed tolerance to surface placing)
   ƒ           Not to contain any score marks
   ƒ           Consistency of matrix removal and exposure
   ƒ           Pass relevant slip test requirements as stated in this specification
   ƒ           Demonstrate change in colour panels / jointing (Saw cut joints and Expansion
               Joints)
   ƒ           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