Sampling for Aggregate Crushing Value Test For the Aggregate crushing value test an aggregate sample passing through 125 mm IS sieve and retained on 10mm IS sieve is selected and dried to a temperature of 105 ºC to 110 ºC then cooled to room temperature To fill the cylindrical measure mould about 65 kg of a sample of aggregate is sufficient... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.
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 A data sheet is given as Form 771
Further DetailsConcept 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 to a specified load under
Further DetailsObjective 1 Determine the aggregate crushing value of coarse aggregate 2 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
Further Detailsratio 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 BA X 100 where A weight of ovendried sample B weight in g of fraction passing through 236 mm IS sieve Aggregate Crushing Value Test
Further Detailsaggregate to crushing under a gradually applied compressive load Crushing value is a measure of the strength of the aggregate The aggregates should therefore have minimum crushing value 3 APPARATUS The apparatus of the aggregate crushing value test
Further DetailsCalculation of Aggregate Crushing Value The ratio of weight of fines formed to the weight of total sample in each test shall be expressed as a percentage the result being recorded to the first decimal place Aggregate crushing value W2 x 100 W1W W2 Weight of
Further DetailsTwo models available A082 Comprising 150 mm nominal diameter steel cylinder plunger base plate tamping rod and measure 115 mm diameter x 180 mm for aggregate passing 127 mm and retained by 952 mm sieve Weight 20 Kg approx A083 Comprising 75 mm nominal diameter steel cylinder plunger base plate tamping rod and measure 57 mm diameter x 90 mm deep
Further DetailsAggregate crushing value test apparatus is used for measuring resistance of an aggregate to crushing This equipment consists of v rical container 150mm ± 05mm dia x 130mm to 140mm high with base plate 200 to 230mmsqr X 6mm
Further DetailsSep 12 2015 · The aggregate crushing value provides a relative measure of resistance to crushing under gradually applied crushing load The test consists of subjecting the specimen of aggregate in standard mould to a compression test under standard load conditions See Fig1
Further Details