specification for subdivision construction of road works and drainage

Aggregate Grading Limits
Sieve Size
Range Percentage of Mineral Aggregate Passing Sieve (by mass)
Size 14 Size 10 Size 7
19.0mm
100
13.2mm
85 - 100
100
9.50mm
70 - 85
90 - 100
100
6.70mm
62 - 75
70 - 90
80 - 100
4.75mm
53 - 70
58 - 76
70 - 90
2.36mm
35 - 72
40 - 58
45 - 60
1.18mm
24 - 40
27 - 44
35 - 50
0.600mm
15 - 30
17 - 35
22 - 35
0.300mm
10 - 24
11 - 24
14 - 25
0.150mm
7 - 16
7 - 16
8 - 16
0.075mm
4 - 7
4 - 7
5 - 8
R3
PAVEMENT
R3.1 Sub-Grade
The formation shall be excavated to the required pavement width and to the longitudinal and cross
sectional gradings shown on the drawings.
The sub-grade shall be compacted to a minimum dry density ratio of not less than 95% when tested in
accordance with AS1289 E2 to a minimum depth of 150m below the sub grade surface.
The completed sub-grade shall be approved by the Engineer prior to placing the sub-base material.
R3.2 Sub-Base
The sub-base shall be constructed of local crusher dust or modified pindan according to the
availability of material in the area to the width shown on the drawings.
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Specification for Subdivision Construction of Road Works and Drainage
Rev. 1 – February 2013