Method
for aggregates between 40 mm and 5 mm
Apparatus
NOTE:
All apparatus described should conform to the general requirements of BS 812: Part
100.
Balance,
of capacity not less than 3 kg, accurate to 0.5g and of such a type as to
permit weighing of the vessel containing the aggregate and water.
Well
ventilated oven, thermostatically controlled to maintain a temperature of 105 °C ±
5 °C+
Wide-mouthed
glass, vessel, such as a gas jar, of 1.01 to 1.51 capacity, with a flat ground
lip and a plane-ground disc of plate glass to cover it, giving a watertight
fit.
Two
dry soft absorbent cloths, each not less than 750 mm x 450mm.
Shallow
tray, of area not less than 0.03 m2.
Airtight
container, large enough to take the sample.
5.0
mm BS test sieve
Supply
of water, free from any impurity that would significantly affect its density.
If distilled or deionized water is not available in sufficient quantity, tap
water which has been freshly boiled and cooled to room temperature may be used.
This water shall be used throughout the test.
