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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

NOTE 2 The intended purpose of crushing aggregates is to change the particle surface texture from smooth to rough and the particle shape from round to angular These alterations in characteristics will aid in the aggregate particles interlock and adhesion 12143 TERMINOLOGY Fractured Face Broken surface constituting an area equal to at least 25

Jan 04 2014 · Test Name Methods for determination of Aggregate Crushing Value ACV Code BS 812 Part 110 IS 2386 Definition of ACV Aggregate Crushing Value ACV gives an relative measure how the aggregate act under an gradually acting compressive load Sieve Size ACV is applicable for aggregates passing 140 mm sieve and retained on 1000 mm sieve For other size fractions

Testing aggregates Part 110 Methods for determination of aggregate crushing value ACV Method for aggregates passing a 140 mm test sieve and returned on a 100 mm test sieve Also describes a method for other size fractions

The aggregates should therefore have minimum crushing value 3 APPARATUS The apparatus of the aggregate crushing value test as per IS 2386 Part IV – 1963 consists of 1 A 15cm diameter open ended steel cylinder with plunger and base plate of the general form and dimensions as shown in Fig 1

B Specification 3138 Classes 5 and 6 stabilizing aggregate and aggregate bedding have a required minimum percent crushing The percent crushing referred to in that specification is not the same as Sections 12146 12147 or 12148 Differences are as follows 1 Percent crushing can be determined by samples taken from

Jan 04 2014 · Test Name Methods for determination of Aggregate Crushing Value ACV Code BS 812 Part 110 IS 2386 Definition of ACV Aggregate Crushing Value ACV gives an relative measure how the aggregate act under an gradually acting compressive load Sieve Size ACV is applicable for aggregates passing 140 mm sieve and retained on 1000 mm sieve For other size fractions

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DETERMINATION OF AGGREGATE CRUSHING VALUE 1 To determine the aggregate crushing value of coarse aggregates 2 To assess suitability of aggregates for use in different types of road pavement 2 PRINCIPLE The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load Crushing value is a

May 08 2013 · Objective For determination of the aggregate crushing value of coarse aggregate which passes 125 mm IS sieve and retained on 10 mm IS sieve Reference Standard IS 2386 Part IV1963 Methods of test for aggregate for concrete Part IV Mechanical Properties Equipment Apparatus Steel Cylinder Sieves 125mm10mm Cylindrical metal measure Tamping Rod Balance 0

This British Standard a part of the BS 812 series 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 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 plate tamping rod and measure

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DETERMINATION OF AGGREGATE CRUSHING VALUE 21 Object This method of test covers the procedure for determining aggregate crushing value of coarse aggregate NOTE 1 The ‘aggregate crushing value’ gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load

This report discusses the determination of protocols and recommendations on the characteristics of the aggregates in a multifaceted way considering the geological geotechnical and mix design to ensure accurate economical and time British Standards tests ie Aggregate Crushing Value ACV prove to be very reliable methods in finding

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To obtain an efficient and economic concrete mix determination of the optimum proportions of binary aggregate mixtures of coarse and fine aggregates is necessary

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