Aggregate impact value is the ratio of the weight of the fraction passing through 2.36 mm weight W2 by the total weight of the sample weight W1 W2 . Aggregate Impact Value = W2/ W1 W2 * 100 = 80 gm / 300 gm = 26.67 Impact Value Where, W1= Weight of the fraction passing through 2.36 mm IS sieve. 220 gm
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fresh test made. Two tests shall be made. 5.Calculation 1.The ratio of the weight of fines formed to the total sample weight in each test shall he expressed as a percentage, the result being recorded to the first decimal place: Aggregate Impact Value = B/A X 100 where A = weight in g of saturated surface - dry sample,
Aggregate Impact Value; Test Specifi ions: Aggregate Impact Value. The test sample shall consist of aggregates the whole of which passes through ½ in B.S. test sieve and is retained on a 3/8 in B.S. test sieve.
Aggregate Impact Value BS 812: Part 3 1. Objective To determine the aggregate impact value in the laboratory 2. Introduction Impact value of an aggregate is the percentage loss of weight particles passing 2.36mm sieve by the appli ion of load by means of 15 blows of standard hammer and drop, under specified test condition.
2Experiment Name: Determine of Aggregate Impact Value Test: BS 812 Purpose of the test: The Impact value of an aggregate is the percentage loss of weight particles passing 2.36mm sieve by the appli ion of load by means of 15 blows of standard hammer and drop, under specified test condition.
Impact Test Fig-3 Impact Test Setup. The aggregate impact test is carried out to evaluate the resistance to impact of aggregates. Aggregates passing 12.5 mm sieve and retained on 10 mm sieve is filled in a cylindrical steel cup of internal dia 10.2 mm and depth 5 cm which is attached to a metal base of impact testing machine.
Aggregate impact value test 1. Aggregate Impact Value TestAim: To conduct a test to determine aggregate impact value of coarseaggregate.Note: Aggregate Impact Value gives a relative measure of the resistanceof an aggregate to a sudden shock or impact which differs fromcrushing strength.IS: 2386 Part IV.Apparatus:Impact Testing Machine, Tamping Rod, Sieves 12.5mm, 10mm and2.36mmProcedure:-Take ...