specification for subdivision construction of road works and drainage
specification for subdivision construction of road works and drainage
specification for subdivision construction of road works and drainage
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TOLERANCE<br />
COMPONENT<br />
ALIGNMENT GRADE LEVEL<br />
Pipes, Box Culverts And<br />
Lined Channels<br />
∀ 25mm<br />
+ 10mm<br />
- 20mm<br />
∀ 10mm<br />
Structures ∀ 20mm - ∀ 10mm<br />
D3<br />
MATERIALS<br />
D3.1 Cement<br />
Cement shall be <strong>of</strong> Western Australian manufacture <strong>and</strong> in accordance with AS3972. Cement shall<br />
be contained in bags bearing the stamp <strong>of</strong> a NATA registered testing Authority. Any bag showing<br />
signs <strong>of</strong> "age caking" shall be rejected.<br />
D3.2 Water<br />
Water used in concrete or mortar shall be <strong>of</strong> potable quality, free from suspended material, organic<br />
matter, alkali, salts <strong>and</strong> other impurities.<br />
D3.3 Fine Aggregate<br />
The term "Fine Aggregate" is used to designate aggregate in which the maximum nominal size <strong>of</strong><br />
particles is 4.75mm. Fine aggregate <strong>for</strong> concrete <strong>and</strong> mortar shall be natural s<strong>and</strong> which shall consist<br />
<strong>of</strong> hard, angular, durable grains free from dust, s<strong>of</strong>t particles, alkali, organic matter, loam <strong>and</strong> other<br />
deleterious substances.<br />
Fine aggregate shall be in accordance with AS2758.<br />
D3.4 Coarse Aggregate<br />
Specification <strong>for</strong> Subdivision Construction <strong>of</strong> Road Works <strong>and</strong> Drainage<br />
Rev. 1 – February 2013<br />
17
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