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may 17, 2019 aggregate impact value test apparatus, procedure and uses july 2019; penetration test of bitumen-procedure, apparatus, may 2019; aggregate crushing value test determine aggregate may 17, 2019; types of formwork for concrete april 13, 2020; rain gauge: uses, types, diagram, rainfall september 25, 2020the aggregates crushing value test should be performed as per IS code 2386 part iv. first, fill the sample aggregate with one-third of the cylindrical measure in three layers. each layer should be tamped imes freely. after filling the sample aggregate, weigh and record it as now fill the aggregate in the mould along with the plunger on top.feb 08, 2012 the aggregate impact value is aiv 100 aresultsan average is taken of the two tests and the result is recorded to the nearestwhole number as the aggregate impact value.the aiv is normally about 105 per cent of the aggregate crushing value and itcan be used for the same purpose. for weak aggregates, the required load calculate aggregate crushing value. the ratio of the weight of fines formed to the total sample weight in each test shall be expressed as a percentage, the result being recorded to the first decimal place: aggregate crushing value 100. where, is weight of surface-dry sample