Environmental Engineering Reference
In-Depth Information
AS2758.1, 1985. Aggregates
Fine
15% protected and
Experience shows
and rock for engineering
aggregates
moderate conditions,
fine grained naturally
purposes
(
5 mm)
12% severe
occurring aggregates
conditions
have generally
undergone substantial
weathering in their
natural environment
and rarely require
durability testing
Coarse
Test either Los Angeles and
35% CG,
12% protected,
80 kN wet
Also specify particle
aggregate
sulphate soundness OR wet
25% FG,
9% moderate,
strength,
35%
density, shape, water
strength variation
moderate
6% severe
wet/dry variation
absorption
conditions;
moderate
30% CG,
conditions,
FG not
100 kN wet
specified,
strength,
25%
severe
wet/dry variation
conditions
severe conditions
CG
coarse grained rock; FG
fine grained rock.
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