### What is the need of impact test? Quora

Jul 17, 2017 · The aim of aggregate impact test is to determine the relative measure of the resistance of aggregate to sudden shock or impact in which in some aggregate differs from its resistance to a slowly applies compressive load. The property of a material

Get price### Aggregate Impact Value (AIV) Test for Aggregates

Jun 22, 2014 · The aggregate impact value is expressed as the percentage of the fines formed w.r.t the total weight of the sample Aggregate Impact Value (AIV) = (100*M2)/M1 Where: M1 =Mass of the test specimen M2 = Mass of the test specimen passing 2.36 mm test sieve

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Sep 12, 2015 · Impact Test Fig3 Impact Test Setup. 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.

Get price### How to Find Aggregate Crushing Value and Its Test Procedure?

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 partIV and used to verify the crushing strength of aggregates. The aggregates should be oven dried, which can passes through 12.5mm and retained on

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Dec 08, 2017 · In this video, we will see the procedure of determining aggregate impact value as per IS 2386 PART4.

Get price### METHOD B1 THE DETERMINATION OF THE AGGREGATE

The aggregate crushing value (ACV) of an aggregate is the mass of material, expressed as a percentage of the test sample. which is crushed finer than a 2,36 mm sieve when a sample of aggregate passing the 13,2 mm and retained on the 9,50 mm sieve is subjected to crushing under a gradually applied compressive load of 400 kN. 2 APPARATUS

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Experiment No. 4: Determination of the aggregate impact value of different coarse aggregate samples. (BS 812) Scope & significance: Aggregate Impact Value The aggregate impact value gives a relative measure of the toughness or the resistance of aggregate sudden shock or impact is not proportional to the resistance to a slowly applied compressive load.

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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 load.The method is applicable to aggregates passing a 14.0 mm test sieve and retained on a 10.0 mm test sieve.

Get price### IS 23864 (1963): Methods of test for aggregates for

2.1 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. With aggre gate of ''aggregate crushing value'' 30 or higher, the

Get price### Methods for determination of aggregate impact value (AIV

aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact. Two procedures are described, one in which the aggregate is tested in a dry condition, and the other in a soaked condition. The methods are applicable to aggregates passing at 14.0 mm test sieve and

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Determination of Aggregate Impact Value Impact Test on Aggregates is done to carry out to: Determine the impact value of the road aggregates, Assess. Determination of Aggregate Impact Value Impact Test on Aggregates is done to carry out to: Determine the impact value of the road aggregates, Assess Procedure of Aggregate Impact Test.

Get price### 7 LAB TESTS ON AGGREGATE TO CHECK QUALITY FOR USE IN

Sep 12, 2015 · Impact Test Fig3 Impact Test Setup. 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.

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Procedure for crushing strength of aggregate. Before testing, the aggregate should be in surface dry condition.You can achieve the dry condition of aggregate by placing aggregates in an oven for 4 hours at 100degree Celcius. The aggregates passing through 12.5mm and retained on 10mm IS sieves are selected for finding aggregate crushing strength.

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Apr 19, 2017 · Aggregate Crushing Value Test Duration: Aggregate Impact Value Determination Mohan A 42,000 views. 9:46. Determination of Dry Density of Soil by Sand Replacement Method Duration: 13

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The flakiness index is found by expressing the weight of the flakey aggregate as a percentage of the aggregate tested. Test Method: IS: 2386 (P1) 1963. Impact Value: This test helps in determining the value which indies the ability of an aggregate to resist crushing.

Get price### BS 812121:1989 Testing aggregates. Method for

Testing aggregates Method for determination of aggregate impact value (AIV) BS 812103.2:1989 Testing aggregates. Method for determination of particle size distribution Sedimentation test BS 812111:1990 Testing aggregates Methods for determination of ten per cent fines value (TFV) BS 812109:1990 Testing aggregates Methods for determination

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Test Procedures and Equipment. formed in the test is known as the aggregate impact value AIV. higher values are given by weaker ASTM D5874 02(2007) Standard Test Method for Determination

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Why to test Aggregate Impact Value? Toughness is the property of a material to resist impact. Due to traffic loads the road stone are subjected to the pounding action of impact and there is possibility of breaking into smaller pieces.

Get price### What is the need of impact test? Quora

Jul 17, 2017 · The aim of aggregate impact test is to determine the relative measure of the resistance of aggregate to sudden shock or impact in which in some aggregate differs from its resistance to a slowly applies compressive load. The property of a material

Get price### How to find Aggregate Impact Value? Impact test in Your

Procedure for aggregate impact value test. i) The cup of the impact testing machine is fixed firmly in position on the base of the machine and the whole of the test sample is placed in it and compacted by 25 strokes of the tamping rod. ii) The hammer is raised to 380mm above the upper surface of the aggregates in the cup and allowed to fall

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Appliion of Aggregate Impact Value. The aggregate impact test is considered to be an important test to assess the suitability of aggregates as regards the toughness for use in pavement construction. It has been found that for majority of aggregates, the aggregate crushing and aggregate impact values are numerically similar within close limits.

Get price### How to Find Aggregate Crushing Value and Its Test Procedure?

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 partIV and used to verify the crushing strength of aggregates. The aggregates should be oven dried, which can passes through 12.5mm and retained on

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Aggregate Impact Value Test. AIV test is conducted to determine the Aggregate Impact Value of Coarse aggregate. The aggregate impact value gives a relative measure of the resistance of an aggregate to sudden shock or impact, which in some aggregates differs from Its resistance to a slow compression load.

Get price### How to find Aggregate Impact Value? Impact test in Your

Procedure for aggregate impact value test. i) The cup of the impact testing machine is fixed firmly in position on the base of the machine and the whole of the test sample is placed in it and compacted by 25 strokes of the tamping rod. ii) The hammer is raised to 380mm above the upper surface of the aggregates in the cup and allowed to fall

Get price### DCC3113 DETERMINATION OF AGGREGATE IMPACT VALUE.

Dec 15, 2017 · The aggregates should therefore have sufficient toughness to resist their disintegration due to impact. This characteristic is measured by impact value test. The aggregate impact value is a measure of resistance to sudden impact or shock, which may differ from its resistance to gradually applied compressive load.

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Procedure to determine Aggregate Impact Value. i) The cup of the impact testing machine should be fixed firmly in position on the base of the machine and the whole of the test sample placed in it and compacted by 25 strokes of the tamping rod.

Get price### Los Angeles Abrasion Test Procedure, Apparatus

The Los Angeles test is a measure of degradation of mineral aggregates of standard gradings resulting from a combination of actions including abrasion or attrition, impact, and grinding in a rotating steel drum containing a specified number of steel spheres. The Los Angeles (L.A.) abrasion test is a common test method used to indie aggregate toughness and abrasion

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Apr 25, 2019 · Aggregate 10 % Ten percent fines value test procedure of coarse aggregate is required to find out the resistance of coarse aggregate to crushing. We described the test procedure of 10% Ten percent fines value of coarse aggregate as per IS code with 10% Ten percent fines value

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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 100110 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 material.

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Jan 23, 2018 · PURPOSE OF TEST: Aggregate Impact Value test determines the Aggregate Impact Value (AIV) of aggregates which provides a relative measure of the resistance of an aggregate to sudden shock or impact. Resistance of the aggregates to impact is termed as toughness.

Get price### How to Determine the Aggregate Crushing Strength Value in

Procedure for crushing strength of aggregate. Before testing, the aggregate should be in surface dry condition.You can achieve the dry condition of aggregate by placing aggregates in an oven for 4 hours at 100degree Celcius. The aggregates passing through 12.5mm and retained on 10mm IS sieves are selected for finding aggregate crushing strength.

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C535 Test Method for Resistance to Degradation of LargeSize Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine. C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials. C702 Practice for Reducing Samples of Aggregate to Testing Size. D75 Practice for Sampling Aggregates

Get price### Standard Test Methods for Determination of the Impact

5.16 The Heavy Impact Value has appliion to testing the same materials as those tested by the standard, light, medium, and heavy medium heavy impact soil testers, but the greater mass of this impact soil tester provides less sensitivity of the output so is applicable for harder materials at the top end the scales or beyond the ranges of the lighter impact soil testers.

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4. procedure. The test sample shall consist of aggregate the whole of which passes a 12.5 mm IS Sieve and is retained on a 10 mm IS Sieve. The aggregate comprising the test sample shall be dried in an oven for a period of four hours at a temperature of 100 to 110°C and cooled.

Get price### Aggregate Crushing Value Test – Determine Aggregate

Procedure The aggregate sample: The material for the standard test consists of aggregates sized 10.0 mm to 12.5 mm .The aggregates must be in surface dry condition before testing. The aggregates may be dried by heating at 100 oC – 110 o C for not mor than 4 hours and cooled to room temperature before testing, if necessary.

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Department : Department of Infrastructure and Geomatic Engineering Title : AGGREGATE IMPACT VALUE 1.0 INTRODUCTION Impact value of an aggregate is the percentage loss pf weight of particles passing 2.36mm sieve by the appliion on load by mean of 15 blows of standard hammer and drop under specified test condition. The aggregate impact value

Get price### Aggregate Impact Value (AIV) Test for Aggregates

Jun 22, 2014 · The aggregate impact value is expressed as the percentage of the fines formed w.r.t the total weight of the sample Aggregate Impact Value (AIV) = (100*M2)/M1 Where: M1 =Mass of the test specimen M2 = Mass of the test specimen passing 2.36 mm test sieve

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