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BS 812-112:1990

BS 812-112:1990

$86.31

Testing aggregates – Method for determination of aggregate impact value (AIV)

Published By Publication Date Number of Pages
BSI 1990 14
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This Part of BS 812 describes methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact.

Two procedures are described, one in which the aggregate is tested in a dry condition, and the other in a soaked condition.

The methods are applicable to aggregates passing at 14.0 mm test sieve and retained on a 10.0 mm test sieve. For smaller size fractions, a recommended method is described in appendix A.

Aggregate sizes larger than 14 mm are not appropriate to the aggregate impact value test.

NOTE 1 For the determination of the resistance of an aggregate to a slowly applied compressive load, see BS 812-110.

NOTE 2 The titles of the publications referred to in this standard are listed in the inside back cover.

Methods which give a relative measure of the resistance of an aggregate to sudden shock or impact.

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BS 812-112:1990
$86.31