mar 30, 2020 the aggregate crushing value test evaluates the ability of the aggregates used in road or pavement construction to withstand the stresses induced by moving vehicles in the form of crushing. with this, the aggregates should also provide sufficient resistance to crushing under the roller during construction work and under rigid tyre rims of may 08, 2013 aggregate crushing value 100 record. the mean of the two results is reported to the nearest whole number as the aggregate crushing value of the tested material. safety & precautions: use hand gloves while removing containers from oven after switching off the oven. To wear safety shoes & helmet during the time of test.aggregate crushing value test pdf crusher. aggregate crushing value and fines value number report the mean as the aggregate crushing value unless the individual results differ by more than 007 times the mean value in this case repeat the test on two further specimens calculate the median of the four results to the nearest whole number and report the median as the aggregate crushing value

feb 08, 2012 impact, 10% fines & crushing testsfigure apparatus for the 10% fines test and aggregate crushing test the material used for both tests is aggregate passing a 12.70 mm sieve and retained on a 9.52 mm sieve.aggregate crushing value and its test procedure: one of the test in which concrete material can fail is due to crushing under compressive stress. aggregate crushing test is standardized by is: 2386 part-iv and used to verify the crushing strength of aggregates. the aggregates should be oven dried, which can passes through 12.m and retained on aggregate crushing value test report nigeria. aggregate crushing value this test helps to determine the aggregate crushing value of coarse aggregates as per IS the apparatus used is cylindrical measure and plunger, compression testing

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.As per is: 383 this apparatus is used to measures resistance of an aggregate to crushing under a gradually applied compressive load. specification: consists of m.s.cylindrical container 150 mm 0.m dia to high with base plate 200 to 230 mm.sqr thick.a plinger of 0.m dia 100 to high.1.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 weight of oven-dried sample weight in of fraction passing through 2.36 mm IS sieve. 6.video aggregate crushing value test

aggregate crushing value this test helps to determine the aggregate crushing value of coarse aggregates as per is: 2386 1963. the apparatus used is cylindrical measure and plunger, compression testing machine, IS sieves of sizes 12.m, and 2.m. procedure to determine aggregate crushing valuethe apparatus of the aggregate crushing value test as per is: 2386 1963 consists of: diameter open ended steel cylinder with plunger and base plate, of the general form and dimensions as shown in fig straight metal tamping rod 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

number. report the mean as the aggregate crushing value, unless the individual results differ by more than 0.07 times the mean value. In this case repeat the test on two further specimens, calculate the median of the four results to the nearest whole number and report the median as the aggregate crushing value. data sheet is given as form 7.7.1.BS 812 part 110 describes a method to determine the aggregate crushing value which gives a relative measure of the crushing resistance of aggregate under an increasing compressive load.the method is applicable to aggregates passing a 14.0 mm test sieve and retained on a 10.0 mm test sieve.objective: determine the aggregate crushing value of coarse aggregate. assess suitability of coarse aggregates for use in different types of road. theory: the aggregate crushing value give a relative measure of the resistance of

the crushing value of aggregates is measured in the ratio between the crushed aggregates, obtained from the IS sieve 2.m 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 100. lab reportthe average crushing value in the different tests is the actual crushing value of aggregate. important points to remember It is recommended that the crushing value of aggregate should be less than 30%. If it is more than then 10% finer aggregate is suggested to use.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 2.36 mm IS sieve divided by weight of aggregate sample taken for test aggregate crushing value or

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 material obtained when the test aggregates are subjected to a specified load under standardized conditions, and the strength of the aggregate used in road BS 110, the aggregate crushing value test set provides a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. each set consists of steel cylinder, plunger, base plate, cylindrical measure and tamping rod.

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