Landscape Specification

CONTENTS

When the location and type of construction joints are not shown on the drawings, submit proposed location
and detail of construction joints to the Landscape Architect for approval prior to the start of formwork
placement. Superintendent will direct treatment before depositing the new concrete against a construction
joint.

All saw cuts to be true and straight of constant width with clean edges without spalling or breaking away of
concrete.

Make the joint straight and true, and free from blemishes impermissible for its surface finish class.

Quality of surface finish
Set out concrete formwork to give regular arrangement of panels, joints, bolt holes and the like visible
elements in the formed surface. The surface finish class permissible deviations from the designed position
should be to AS3610. For the finish class Refer Schedule - Materials & Finishes as the class finish may vary
according to the concretes specific function and location. Surface Finish to be Class 2 unless specified
otherwise.

Acceptable minimum quality of surface (from AS 3610)

   Quality of surface finish        Class 1           Class 2           Class 3          Class 4          Class 5

   Blowholes                       Refer to photographs in AS 3610 for examples         N/A              N/A

   Form face deflection            Lesser of         Lesser of         Greater of       Greater of       N/A
                                   2mm or            3mm or            3mm or           3mm or
                                   span/360          span/270          span/270         span/270

                                   Maximum tolerances for straight elements with smooth surface, in mm

   Percentage of readings           95         100    90         100    80        100    70        100    70          100

   Face step
   Within the element               1          2      2          3      3         5      5         8      -           -
   At in situ construction joint    2          3      2          3      3         5      5         8
   Surface undulations**
   L = 300 (a-b) ≤                  1          2      2          4      3         4      5         7      -           -
   L = 1500 (a-b) ≤                 2          4      3          6      5         7      8         10
   Flatness
   1.25 grid                        4          5      6          7      7         10     -         -      -           -
   At 5m over 10m                   5          7      7          10     10        15
   (not applicable for precast
   concrete)
   Out of plumb
   Height < 3m                      3          5      4          6      5         7      -         -      -           -
   3 < height < 8m                  6          8      8          10     10        12
   (not applicable for precast
   concrete)



Finished concrete elements
Tie rod holes are to be filled unless otherwise stated. Holes to be filled with material matching the surface
colour, as approved on the test panel prior to application.

Use penetrating sealer on all concrete works.




URBIS
URB-SPC-LAN-P0025138                                                                                           PAGE   19