Viridian III Technical Specification OPW1 [As Published] · 142008.256

                                                                            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