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1) To determine the aggregate crushing value of coarse aggregates The apparatus of the aggregate crushing value test as per IS 2386 (Part IV) 1963. results and discussions OoCities This test is important because the properties of RAP depend on the Figure 3 (a) Aggregate Crushing Value and (b) Aggregate Impact Value Apparatus.
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Learn More2021/01/01 · Strength of aggregate is evaluated in laboratory by Aggregate Crushing Value (ACV) test and Aggregate Impact Value (AIV) test after each generation …
Learn More2010/04/02 · What is Aggregate Crushing Value? The aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied compressive load. To achieve a high quality of pavement, aggregates possessing low aggregate crushing value should be preferred. Why to test Aggregate Crushing Value?
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Learn MoreCalculations: The aggregate impact value is expressed as the percentage of the fines formed in terms of the total weight of the sample. 100 W2 Where, W1 = Original weight of the sample. Aggregate Impact Value = W1 W2 = Weight of fraction passing 2.36mm IS sieve.
Learn MoreThe crushed aggregate is allowed to pass through 2.36 mm IS sieve. And the impact value is measured as percentage of aggregates passing sieve () to the total weight of the sample (). Figure 3: Impact test setup Aggregates to be used for wearing course, the impact value shouldn't exceed 30 percent.
Learn MoreAggregate Impact Value. This test is done to determine the aggregate impact value of coarse aggregates as per IS: 2386 (Part IV) - 1963. ... . for non wearing surface its max. limit is 45%.
Learn More2020/07/13 · AGGREGATE IMPACT VALUE TEST Object of the Experiment To evaluate the toughness of a stone i.e. the resistance of the aggregates to fracture under repeated impacts is called Impact Test. This test is done to determine the aggregate impact value of …
Learn MoreThe crushing value of aggregates is measured in the ratio between the crushed aggregates, obtained from the IS sieve 2.36mm and the weight of the dried aggregate sample. At least three samples should be tested from the same batch and average value to get accurate results. The crushing value of aggregate = (W2/W1) x 100
Learn MoreThe aggregate impact value gives a relative measure of the resistance of an aggregate to sudden shock or impact, which in some aggregate differs from its resistance to a slow compressive load. The test sample consists of aggregate the whole of which passes a 12.5 mm sieve and is retained on a 10 mm sieve.
Learn MoreAggregate Testing Equipment. Providing you the best range of aggregate crushing value test apparatus, los angeles abrasion test apparatus, air entrainment meter, aggregate impact value test apparatus and flakiness & elongation index test gauges with effective & timely delivery.
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Learn MoreThe Aggregate Testing Equipment provided by us chiefly catalogues Aggregate Crushing Value Apparatus, Aggregate Impact Tester, Aggregate Thickness Gauge, Cylindrical Measures, Deval Attrition Tester, and Jaw Crusher
Learn MoreThe ‘ aggregate crushing value test ` gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Aggregate crushing value is defined as the percentage by weight of the crushed (or finer) material obtained when the test aggregates are subjected to a specified load under standardized conditions, and the strength of the aggregate used in road construction is expressed by numerical index.
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