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Assign specification limits with extreme care in consideration of available aggregate types and their performance history in specific end uses. The percent loss determined by this test method has no known consistent relationship to the percent loss for the same material when tested by Test Method C535
1 APPARATUS FOR MEASURING AGGREGATE CRUSHING VALUE AND TEN PERCENT FINES VALUE 5 IS : 9376 - 1979 5.1.1 The base plate shall be provided with a 1’5 mm groove to ensure proper seating of the cylindrical cell. The base plate shall also be provided with slant handles
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10 rows Aggregate crushing value = (W2 x 100) / (W1-W) W2 =Weight of fraction passing through the
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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 measure of the strength of the aggregate. The aggregates should therefore have minimum crushing value. 3. APPARATUS
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IS:9376-1979 1. SCOPE 1.1 This standard covers requirements of the apparatus for measuring aggregate crushing value and ten percent fines value. 1.1.1 Two sizes of apparatus are covered in this standard, one with 150 mm cylindrical cell and the other with 75 mm cylindrical cell. 2
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Aggregate Crushing Value Apparatus Sun Labtek: specification: 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. all partsspecification: the aggregate crushing value test set provides a relative
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The crushing value of aggregates is rather insensitive to variation in strength of weaker aggregates. For this reason, a simple test known as 10 percent fine value is introduced. When the aggregates crushing value become 30% or higher, the results are likely to be inaccurate. Aggregate Crushing Load (Source: IS 2386(Part 4):1963) The aggregates
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Fine aggregate passing the number 4 (9.5 mm) sieve shall consist of fines from the operation of crushing the coarse aggregate. If necessary, fine aggregate may be added to produce the correct gradation. The fine aggregate shall be produced by crushing stone, gravel or slag that meet the requirements for wear and soundness specified for coarse
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Jan 20, 2020 In current Chinese technical specification, the crushing value of the coarse aggregate for surface layer of asphalt pavement is no greater than 26% . So, the crushing value standard of basalt coarse aggregate used in PA mixture should be increased to not more than 26%/1.48 =
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Bullas and West [4] reported the aggregate impact value did not, but the aggregate crushing value did separate suitable and unsuitable aggregate for bitumen macadam roadbase. Fookes, Gourley and Ohikere [5] recommended that combinations of physical tests such as impact, crushing and abrasion resistance be used to assess aggregate durability
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AGGREGATE CRUSHING VALUE This test helps to determine the aggregate crushing value of coarse aggregates as per IS: 2386 (Part IV) – 1963. The apparatus used is Cylindrical measure and plunger, Compression testing machine, IS Sieves of sizes – 12.5mm, 10mm and 2.36mm Procedure to determine Aggregate Crushing Value i) The aggregates passing through 12.5mm […]
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Aggregate Crushing value Apparatus for determining the Aggregate Crushing Value Specification of apparatus consists Specification of It consists A steel cylinder 75 mm dia, a plunger and a steel base plate. The surfaces coming into contact with the aggregate are case hardened. First Name Contact Number Message Submit Form
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The aggregates crushing value test should be performed as per IS code 2386 Part IV. First, fill the sample aggregate with one-third of the cylindrical measure in three layers. Each layer should be tamped 25times freely. After filling the sample aggregate, weigh and record it as W1. Now fill the aggregate in the mould along with the plunger on top
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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
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Aggregate crushing Value provides a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Ten Percent Fines Value used for testing aggregate smaller than 10 mm. Comprises: 150 mm or 75mm diameter steel cylinder, plunger, base plate, tamping rod and metal measure. More +
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Specification : The selection of proper aggregate for a given application is essential to attain the desired quality. Various characteristics are required to be determined for the selection of appropriate aggregate from the wide range available. Aggregate Crushing Value Test Apparatus is used for measuring resistance of an aggregate to crushing
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Specification : The selection of proper aggregate for a given application is essential to attain the desired quality. Various characteristics are required to be determined for the selection of appropriate aggregate from the wide range available. Aggregate Crushing Value Test Apparatus is used for measuring resistance of an aggregate to crushing
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