Aggregate Impact Value Test

28 Aug 2009 04:19 19
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Impact value of an aggregate is the percentage loss of particles passing 2.36mm sieve by the application or load by means of 15 blows of standard hammer and drop, under specified test condition. The aggregate impact value gives a relative measure of resistance of an aggregate to sudden shock or impact, which in some aggregate differs from their resistance to the slowly applied compressive load.

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