Aggregate Impact Test For Road Aggregates

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Aggregate Impact Test

Aggregates sample (10mm-12.5mm) Oven; Sieves of IS standards (based on the aggregates size) Measuring cylinder; Tamping rod; Weighing balance; Impact testing machine; Procedure: Weigh a certain amount of sample and oven dry it at a temperature of 110-115; Sieve the aggregate sample to discard those which are not residing in our standard limits.

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Aggregate Impact Value Test | PDF | Construction Aggregate | Road

This document describes a test to determine the aggregate impact value (AIV) of aggregates used in road construction. The test involves sieving aggregates to obtain samples between 14-10mm in size, drying the samples, compacting them in layers in a steel cylinder, and subjecting the cylinder to 15 blows from a hammer. The aggregates passing through a 2.36mm sieve are weighed to …

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Tests of aggregates | PPT

AGGREGATE IMPACT VALUE AIM :- To determine the aggregate impact value of coarse aggregates as per IS: 2386 (Part IV) - 1963. APPARATUS :- 1) Impact testing machine conforming to IS: 2386 (Part IV)- 1963 2) IS Sieves of sizes - 12.5mm, 10mm and 2.36mm 3) A cylindrical metal measure of 75mm dia. and 50mm depth 4) A tamping rod of 10mm circular ...

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Test Frequency and Acceptance Criteria

Aggregate Impact Value (IS:2386 Part 4) One test per 200 cum of aggregate: In situ: Max. 30%. (ii) Grading (IS: 2720 Part 4) One test per 100 cum of aggregate: In situ: As per Table 400-11 of MOSRT&H Specs (iii) Flakiness and Elongation Index (IS:2386 Part 1) One test per 200 cum of aggregate: In situ: Max. 30% (iv)

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Aggregate Impact Value Test | PDF | Construction Aggregate | Road

The document describes a procedure to determine the aggregate impact value through laboratory testing. The test involves subjecting aggregate samples to 15 blows from a falling hammer, then measuring the amount of material that passes through a 2mm sieve. Two aggregate samples were tested according to this procedure and found to have impact values of 12.07% and …

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Aggregate Impact Value Test as per IS 2386 (Part-IV) 1993

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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Impact Test on Aggregate

The Aggregate Impact Value Test is one such test. The impact test is a type of quality control test for highway pavements that is used to determine the suitability of aggregates for use in highway pavement construction. ... Aggregates used …

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Impact Test of Aggregate | Lab Test Procedure

Procedure of Impact Test. 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 110 degrees Celsius for about four hours.

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Aggregate Impact Value Test and Procedure

Posted on 31/10/2021 31/10/2021 By Binary And Bricks No Comments on Aggregate Impact Value Test and Procedure. Objective and Significance: – Impact value of the aggregates is useful to understand the strength of the concrete against impact. If aggregates are used in road construction, then are subject to get impact due to heavy road traffic. ...

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Aggregate Impact Value Test.pptx

3. The impact test is a type of quality control test for highway pavements that is used to determine the suitability of aggregates for use in highway pavement construction. Aggregates used in road construction should be strong enough to resist abrasion, crushing, and impact load. Objective Based on the impact value, we can decide whether the coarse …

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IMPACT VALUE OF AGGREGATE

Fig. 3: Impact Testing machine Weight of hammer is 13.5 to 14.0 kg and Height of Fall is 380±5 mm 3.Reference IS 2386(Part 4):1963 Methods of Test for Aggregates for Concrete- Mechanical Properties. Reaffirmed-Dec 2016 4.Procedure 1.The test sample shall consist of aggregate the whole of which passes a 12.5 mm IS Sieve and is retained on a 10 ...

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AIV Lab Report

The Aggregate Impact Value (AIV) (M2/M1)x100 19 % 23 %. AIV = M2/M1 * . Average aggregate impact value of the sample is 21 %. DISCUSSION 1. Give the impact value of a good aggregate to ensure the strength of the. aggregate used in road construction. -Aggregate impact value is measure of toughness of aggregate.

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Aggregate Impact Value and Its Significance in Construction

In the construction industry, the Aggregate Impact Value test is a critical tool for assessing the quality and suitability of aggregates for road construction. It helps ensure that the materials used in building our roads possess the necessary toughness to withstand the impact of vehicular traffic, ultimately contributing to the safety and ...

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7 Aggregate Test: Method & Procedure

Importance of Impact Test on Aggregates. The impact test on aggregate is carried out to know the response of aggregates to different kinds of loads that the aggregates will be subjected to during their service life. ... For the evaluation of the adhesion behavior between bitumen and aggregates, used in road construction, many test methods are ...

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Road Aggregates: Definition and Quality | Geology

Definition of Road Aggregates 2. Qualities of Aggregates 3. Common Road Aggregates. ... Impact Test (For Aggregates): The aggregate is crushed to the size of 1-2 cms. About 5 kg of this is taken and subjected to 15 blows from a 15 kg hammer falling from a height of 40 cm. After these blows are given fines passing through BSS 7 are weighed and ...

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Aggregate impact value test experiment | PDF

If the aggregates are weak, the stability of the concrete structure is adversely affected. The strength of coarse aggregates is assessed by Aggregate Impact Value test. The aggregate impact value provides a relative measure of resistance to sudden shock or impact. APPARATUS 1. Aggregate impact testing machine 2. Cylindrical mould 3. Tamping rod 4.

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IS 2386-4 (1963): Methods of test for aggregates for …

IS 2386-4 (1963): Methods of test for aggregates for concrete, Part 4: Mechanical properties [CED 2: Cement and Concrete] Gr 7 ... Central Road Research Institute (CSIR), New Delhi C:entral Building Research Institute (CSIR), Roorkee ... Determination of Aggregate Impact Vaiue, d) Determination of Aggregate Abrasion Value, ...

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The impact value for the aggregates used in concrete for …

Aggregate impact value test gives an indication of aggregate's toughness property (i.e. property of a material to resist impact).. Aggregates to be used for wearing course, the impact value shouldn't exceed 30 per cent.. For bituminous macadam, the maximum permissible value is 35 per cent. For Water bound macadam base courses the maximum permissible value defined …

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7 LAB TESTS ON AGGREGATE TO CHECK QUALITY FOR USE …

It is the ability of aggregates that resist sudden impact or shock load on it. Also, it can be defined as the resistance of aggregate to failure by impact load is known as the Impact Value of Aggregate. The characteristic of any material to resist sudden impact is known as toughness. When we use aggregate in roads and pavement o…See more on civiconcepts

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    • Determining the Physical Properties of Aggregate …

    Sieve test, Impact test, Aggregate Crushing Value test, Aggregate Abrasion Value test, Specific Gravity and Water Absorption test are the tests that have been carried out to evaluate the engineering properties of the natural rock ... of coarse aggregates for road base construction from Arba Minch area of different quarry sites. 4.1.1. Grading ...

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    Stone Aggregate Tests Questions and Answers

    If the aggregate impact value lies between 10 – 20%, the aggregate is said to be _____ a) Exceptionally tough ... The method to analyse the adhesion of binder to aggregate was developed by the Road Research laboratory RRL, England. ... Mechanical Behaviour & Testing of Materials MCQ Questions; Construction and Building Materials MCQ Questions;

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