Specifications

STANDARD SPECIFICATION - BUILDINGS
DPI REFERENCE TEXT - APRIL 2009
PAGE 38
Preparation
Trim the ground to suit the required thickness of
concrete and compact to a rm, even surface.
Control joints
Form tooled joints at maximum 2 m spacing.
Expansion joints
Cast-in 10 mm thick Abelex closed cell compressible
ller strip at maximum 6 m spacing.
Abutment with building
If concrete paving more than 1.5m wide abuts the
wall of a building, provide a strip of 10 mm thick
Ableex closed cell compressible ller strip between
the paving and the wall.
Broom nish
Wood oat and broom to an even textured slip-
resistant surface with steel tooled margins. On
gradients steeper than 10%, roughen the surface
by scoring.
Exposed aggregate nish
Steel trowel to a smooth surface. After nal set use
clean water and brushes to remove the surface lm
of mortar until the aggregate is uniformly exposed
without cutting of the matrix.
Sponge nish
After screeding and nishing with a steel trowel
obtain an even textured sand nish by wiping the
surface using a damp sponge.
Pattern Paving
After machine oating, apply a proprietary treatment
producing an integral coloured and patterned
surface.
20.9 GRAVEL DRIVEWAYS
Location: Hardstand, driveways and paths as
shown on the drawings.
Material: Approved road gravel - Type 3.
Thickness: Minimum 100 mm after compaction.
Falls: Minimum 1:100.
Compaction: Compact and Proof Roll to achieve
a dry density ratio of 95% MMDD when tested to
AS 1289 5.4.1.
20.10 LOG BARRIERS
Provide log barrier bollards or fencing consisting of
timber posts and rails complete with connections.
Construct as shown in the standard drawing C(S)
1302.1.
For bollards turn the tops to a hemispherical shape.
20.8 IN SITU CONCRETE PAVING
Concrete
Standard: To AS 1379 grade N25.
Minimum thickness
Foot and bicycle trafc and light domestic trafc
occasionally up to 3 tonne gross: 100 mm.
Reinforcing Mesh: SL62 placed centrally.
Use pine timber, pressure impregnated with ACQ
preservative formulation, copper oxide (CuO)
and quaternary ammonium compound (DDAC) to
Category H4 of AS 1604.
Do not use preservative treatments that contain
arsenic or chromium.
LANDSCAPE
Specifications March 2009.indd 38 11/03/2009 11:47:13 AM