Aggregate Impact Value Test Pdf

Procedure for aggregate impact value test Aggregate impact value test Machine Take a sample of aggregate and sieve with the help of a 12.5-millimeter sieve and retain it into a 10-millimeter sieve. Sieving should be done in a circular motion. After that sample should be sieved with 10 millimeters sieve and collect in a container

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The aggregate impact value indicates a relative measure of the resistance of aggregate to a sudden shock or an impact, which in some aggregates differs from its resistance to a slow compressive load. The method of test covers the procedure for determining the aggregate impact value of

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General: Normally the aggregate impact value of base course is 30, bituminous bound macadam is about 35 and the cement concrete base course is 30. Significance: The test gives an idea of toughness of the aggregate to resist facture under the impact of moving loads. 2.0 OBJECTIVE To determine the aggregate impact value in the laboratory

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Nov 30, 2008 Aggregate Impact Value Test - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online

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Aggregates, Cement and concrete technology, Impact testing, Mechanical testing, Test equipment, Specimen preparation, Test specimens, Testing conditions, Reproducibility Methods which give a relative measure of the resistance of an aggregate to sudden shock or impact. ; Specifies methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance

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Aggregate test pdf The unit plays an important role in the construction of sidewalks. The units have a significant impact on the ability to carry the load of sidewalks. Therefore, it is important that they are thoroughly tested before use for construction

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Aggregate Impact Value (AIV) test indicates the toughness of aggregates. It is measured as percentage of aggregates passing through 2.36 mm IS sieve to the weight of aggregates taken. Higher the AIV ⇒ more aggregates gets broken during impact ⇒ lower the toughness or weak aggregate

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Aug 29, 2019 Aggregate Impact Value Test as per IS 2386 (Part-IV) 1993. Theory and Scope. The property of a material to resist impact is known as toughness. Due to movement of vehicles on the road, the aggregates are subjected to impact resulting in their breaking down into smaller pieces. The aggregate should therefore have sufficient toughness to resist

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Concept: Aggregate Impact Test: It is conducted to determine the toughness of the aggregates. For testing, the specimen passing through 12.5 mm sieve but retained on 10 mm sieve is filled in 3 layers with 25 time stamping on each layer and then hammer of 13.5 to 14 kg is dropped freely from a height of 38 cm for 15 blows. Aggregate impact value is then the percentage of fine passing through 2

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Sep 12, 2015 Aggregate impact value = (W1/W2)*100. Aggregates to be used for wearing course, the impact value shouldn’t exceed 30 percent. For bituminous macadam the maximum permissible value is 35 percent. For Water bound macadam base courses the maximum permissible value defined by IRC is 40 percent. Also read: Impact Value Test Procedure of Aggregates. 4

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percentage of the original weight of the test sample. This value is reported as the percentage of wear. Aggregate Abrassion Value = ((A-B)/A) X 100 where, A = weight in gm of oven-dried sample. B = weight in gm of fraction retained on 1.70 mm IS Sieves after washing and oven-dried upto constant weight. 6.Video Los Angeles Abrasion Test

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This degree is assessed by a sieving test on the impacted specimen and is taken as the aggregate impact value (AIV). 4 Sampling The sample used for the test (the laboratory sample) shall be taken in accordance with clause 5 of BS 812-102:1989. 5 Apparatus NOTE All apparatus should comply with the general requirements of BS 812-100. 5.1 General

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fresh test made. Two tests shall be made. 5.Calculation 1.The ratio of the weight of fines formed to the total sample weight in each test shall he expressed as a percentage, the result being recorded to the first decimal place: Aggregate Impact Value = (B/A) X 100 where A = weight in g of saturated surface

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Observations and Calculations Calculate the aggregate impact value (AIV) expressed as a percentage to the first decimal place for each test specimen from the following equation:

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test shall be expressed as percentage of the oven dried, the result being recorded to the first decimal place: C Aggregate impact value = A X ]00 where C 11IOII weight of the fines formed, and A = weight of the oven-driedsample. 6. REPORTING OF RESULTS 6.1 The mean of the two results shall be reported as aggregate impact value (wet)ofthe tested material

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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. 3. APPARATUS The apparatus of the aggregate impact value test

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d) Determination of Aggregate Abrasion Value, e) Determination of the Polished Stone Value, and f) Determination of Crushing Strength. 2. DETERMINATION OF AGGREGATE CRUSHING VALUE 2.1 Object - This method of test covers the procedure for determining aggregate crushing value of coarse aggregate

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May 21, 2020 This method of test used to measure the impact value of aggregate use in the construction of Highway pavement and concrete structure. Reference:-Aggregate impact value test IS Code is 2386 (Part 4) – 1963 PDF

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Feb 22, 2010 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. Procedure o f 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

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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 material

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The procedure of the impact value test includes the following series of steps: 1. The aggregate samples of size 10mm to 12.5mm (passing through 12.5mm sieve and retained on 10mm sieve) are first taken and oven-dried at a temperature ranging from 100 degrees Celsius to

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