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impact test for stone aggregates

  • testingof building stones - rock tests on lab & field

    The approximate values for ordinary stone are: Granite 10 – 17.5 MPa; limestone 3.5 – 20 MPa and sandstones in the range 4 – 15 MPa. 4. Impact test. For toughness; A steel hammer of 20 N is allowed to fall axially in the specimen. The blow at which the specimen breaks represents the toughness of the stone. 5. Fire resistance test

  • determination of aggregate impact value - impact teston

    Procedure of Aggregate Impact Test The test sample consists of aggregates sized 10.0 mm 12.5 mm. Aggregates may be dried by heating at 100-110° C for a period of 4 hours and cooled. (i) Sieve the material through 12.5 mm and 10.0mm IS sieves. The aggregates passing through 12.5mm sieve and retained on 10.0mm sieve comprises the test material

  • 7 labtests on aggregatesto make better concrete for

    Place the mould in the aggregate impact testing machine and administer 15 numbers of blows of a metal hammer. After that, remove the crushed aggregate and sieve it through a 2.36 mm sieve. The aggregate impact value is measured as % of aggregates passing through the 2.36mm sieve (W2) to the total weight of the sample (W1)

  • tests onstones | crushing strength test, water absorption

    The resistance of stones to impact is found by conducting tests in impacting the testing machine [Below Figure]. It consists of a frame with guides where a metal hammer weighing 13.5 to 15 kg can freely fall from a height of 380 mm. Aggregates of size 10 mm to 12.5 mm are filled in a cylinder in 3 equal layers, every layer being tamped 25 times

  • 7 labtests on aggregate to check quality foruse in

    Sep 12, 2015 · The aggregate impact test is carried out to evaluate the resistance to impact of aggregates. Aggregates passing 12.5 mm sieve and retained on 10 mm sieve is filled in a cylindrical steel cup of internal dia 10.2 mm and depth 5 cm which is attached to a metal base of impact testing machine

  • pavementmaterials:aggregates

    Impact test The aggregate impact test is carried out to evaluate the resistance to impact of aggregates. Aggregates passing 12.5 mm sieve and retained on 10 mm sieve is filled in a cylindrical steel cup of internal dia 10.2 mm and depth 5 cm which is attached to a metal base of impact testing machine

  • aggregate impact value test apparatus, procedure and uses

    Jul 01, 2019 · Procedure of Aggregate Impact value test. The test sample: normally aggregates sized 10.0 mm to 12.5 mm. the aggregates should be dried by heating at 100-110 0C for a period of 4 hours and cooled. Sieve the material through 12.5mm and 10.0 mm IS sieves. The aggregates passing through 12.5 mm sieve comprises the test …

  • aggregate impact value test-10+ important notes to

    Jul 16, 2014 · Aggregate Impact Value Testing machine The test equipment and the test procedure are quite simple and it determines the resistance to impact of stone aggregates simulating field condition. This test can be performed even at construction site or at stone …

  • determination of aggregate impact value - impact test on

    Procedure of Aggregate Impact Test The test sample consists of aggregates sized 10.0 mm 12.5 mm. Aggregates may be dried by heating at 100-110° C for a period of 4 hours and cooled. (i) Sieve the material through 12.5 mm and 10.0mm IS sieves. The aggregates passing through 12.5mm sieve and retained on 10.0mm sieve comprises the test material

  • 7 lab tests on aggregate to check quality for use in

    Sep 12, 2015 · The aggregate impact test is carried out to evaluate the resistance to impact of aggregates. Aggregates passing 12.5 mm sieve and retained on 10 mm sieve is filled in a cylindrical steel cup of internal dia 10.2 mm and depth 5 cm which is attached to a metal base of impact testing machine

  • 7 lab tests on aggregates to make better concrete for

    Dec 19, 2019 · Place the mould in the aggregate impact testing machine and administer 15 numbers of blows of a metal hammer. After that, remove the crushed aggregate and sieve it through a 2.36 mm sieve. The aggregate impact value is measured as % of aggregates passing through the 2.36mm sieve (W2) to the total weight of the sample (W1)

  • tests on stones | crushing strength test, water absorption

    May 25, 2020 · The resistance of stones to impact is found by conducting tests in impacting the testing machine [Below Figure]. It consists of a frame with guides where a metal hammer weighing 13.5 to 15 kg can freely fall from a height of 380 mm. Aggregates of size 10 mm to 12.5 mm are filled in a cylinder in 3 equal layers, every layer being tamped 25 times

  • aggregate impact value test-10+ importantnotes to

    Jul 16, 2014 · Aggregate impact value test gives an indication of aggregate’s toughness property (i.e. property of a material to resist impact) Aggregate impact values are used to classify the stone aggregates with respect to toughness property as given below. Aggregate impact …

  • stone aggregate testinglaboratory | sigmatest

    The flakiness index is found by expressing the weight of the flakey aggregate as a percentage of the aggregate tested. Test Method: IS: 2386 (P-1) 1963. Impact Value: This test helps in determining the value which indicates the ability of an aggregate to resist crushing

  • aggregate impact value- civil engineering

    The apparatus used for determining aggregate impact value of coarse aggregates is Impact testing machine conforming to IS: 2386 (Part IV)- 1963,IS Sieves of sizes – 12.5mm, 10mm and 2.36mm, A cylindrical metal measure of 75mm dia. and 50mm depth, A tamping rod of 10mm circular cross section and 230mm length, rounded at one end and Oven

  • properties and testing of aggregates for pavement works

    Impact Test on Aggregates. Impact value of aggregate will give aggregate capability against sudden loads or forces. For this test also aggregate passing through 12.5mm and retained on 10mm sieve is taken and oven dried. Fill the cylinder with aggregate in 3 layers, 25 strokes of tamping for each layer. Weight w1 noted