Calculation of Aggregate Crushing Value Aggregate crushing value can be found by the following formula “Aggregate crushing value is determined by taking a percentage of weight crushed aggregate sample passing through 236 mm IS Sieve divided by weight of aggregate sample taken for test” Aggregate crushing value W3 W or W3 W2 – W1
Aggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load Coarse aggregate crushing value is the percentage by weight of the crushed material obtained when test aggregates are subjected to a specified load under standardized conditions
Aggregate Crushing Value ACV is an index of loss of coarse aggregate CA under sustained loading However ACV is not considered in concrete mix design according to ACI 2111ACI 2111 2009 In this paper effect of ACV of CA on compressive strength of concrete has been explored
General description The aggregate crushing value ACV provides relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load Two versions available 150 standard and 75 mm dia The apparatus comprehend cylinder plunger base
BS 812 part 110 describes a method to determine the aggregate crushing value ACV which gives a relative measure of the crushing resistance of aggregate under an increasing compressive method is applicable to aggregates passing a 140 mm test sieve and retained on a 100 mm test sieve
Experiment No 4 Determination of the aggregate impact value of different coarse aggregate samples BS 812 Scope significance Aggregate Impact Value The aggregate impact value gives a relative measure of the toughness or the resistance of aggregate sudden shock or impact is not proportional to the resistance to a slowly applied compressive load
May 04 2020 · The aggregate crushing value of the coarse aggregates used for cement concrete pavement at surface should not exceed 30 and aggregates used for concrete other than for wearing surfaces shall not exceed 45 as specified by Indian Standard IS and Indian Road Congress IRC See More Water Absorption Test IS 3495 Part II
The aggregates should therefore have sufficient toughness to resist their disintegration due to impact This characteristic is measured by impact value test The aggregate impact value is a measure of resistance to sudden impact or shock which may differ from its resistance to gradually applied compressive load Procedure of Aggregate Impact Test
Mar 02 2017 · Aggregates of Concrete Aggregate Crushing ValueAggregate Crushing Value • The “aggregate crushing value” gives a relativeThe “aggregate crushing value” gives a relative measure of the resistance of an aggregatemeasure of the resistance of an aggregate to crushingto crushing under a gradually applied compressive a
Jun 23 2014 · Aggregate crushing value should not exceed 45 percent for aggregate used for concrete other than for wearing surfaces and 30 percent for concrete for wearing surfaces such as runways roads and pavements Aggregate impact value should not exceed 45 percent by weight for aggregates used for concrete other than
Do you want a customized solution?
CONTACT US