(vi) BS Test Sieves 140mm, 10mm and 236mm The crushed aggregate will be carefully removed 216 The aggregate crushing value is the ratio of the mass of fines formed by the crushing process to the total mass of the sample expressed as a percentage Percentage fines = B/A x 100 (to the first decimal place)This Part of BS 812 describes a method for the determination of the aggregate crushing value (ACV) which gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load The method is applicable to aggregates passing a 140 mm test sieve and retained on a 100 mm test sieveMethods for determination of aggregate crushing value (ACVJul 18, 2021· A lower crushing value indicates a lower crushing fraction under a specific load and would give a better result, longer service life and economic performance Aggregate crushing value test codes Following are the standard guidelines for the crushing value test on the aggregates: • IS 2386 (Part 4):1963 • BS 812–110:1990 ObjectiveCrushing Value Test of Aggregates Importance,

ItThe aggregate crushing value is an indirect measure of crushing strength of the aggregates'" Low aggregate crushing value indicates strong aggregates, as the crushed fraction is low ~hus the test can be used to assess the suitability of aggregates with reference to the crushing strength for various types of pavement componentsIn work [19] conducts studies with the recycled coarse aggregate used in the preparation of a concrete and obtains values like section IIIA In the case of the specific weight it finds the valueSieve analysis of fine aggregates compared with ASTMThe time (10 minutes) is started in the stopwatch The crushed material is then transferred into the sieve of size 236 mm Sieving is done now and the sample passing through the sieve is collected and weighed The weight is recorded as W2 Aggregate Crushing Value (ACV) can be determined by using a simple formula: This test is repeated once orAggregate crushing value test | Step by Step Procedure

May 17, 2019· Concept and significance of the Aggregate crushing value test The ‘ 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 toThe sieve analysis of aggregates recovered from Crushed Coarse Aggregate for Concrete TR 112 & TR 113 Method B aggregate, multiply the values shown in Table 1 by 05 TABLE 1 any sieve during one minute of Approximate Minimum Mass of Dry continuous sievingSIEVE ANALYSIS OF FINE AND COARSE AGGREGATE