This lab report summarizes an experiment to determine the aggregate impact value (AIV) of a sample. The AIV test subjects aggregate samples to standard impacts from a dropping weight to assess their resistance to shock or impact. …
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A. Izod Test. Specimen. The Izod Impact test consists of notched test piece 75mm long, 10mm x 10mm cross section. The test piece is gripped vertically with the root of the notch in the same plain. PROCEDURE. Fix the proper striker to the bottom of the hammer with the help of clamping device. Clamp the latching tube to the bearing housings at ...
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Aggregate impact value is used to classify aggregate quality concerning its toughness property. Lower Aggregate Impact values indicate aggregates that are stronger or more impact resistant, and the aggregates' classification is as …
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compressive load. With aggregate of aggregate impact value (AIV) higher than 30 the result may be anomalous. Also aggregate sizes larger than 14 mm are not appropriate to the aggregate impact test. The standard aggregate impact test shall be made on aggregate passing a 14. mm BS test sieve and retained on a 10.0 mm BS test sieve. If required ...
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5.1 Impact Value, as determined using the standard 4.5 kg (10 lbm) hammer, has direct application to design and construction of pavements and a general application to earthworks compaction control and evaluation of strength characteristics of a wide range of materials, such as soils, soil aggregates, stabilized soil and recreational turf. Impact Value is …
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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 their …
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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.
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Aggregate Sampling, Testing, and Quality Assurance 33 and porosity to also report the testing procedures, for example, ASTM, AASHTO, or agency- developed specification. ... Minimum 55% Fractured Coarse Aggregate Particles Arizona Test Method 212 Minimum 70% (Plus No. 4 material) Source: Arizona DOT 2008. Table 3-5.
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Procedure Simulation Posttest References Feedback Impact Test on Aggregate. INTRODUCTION. Aggregates undergo significant wear and tear throughout their life. Aggregates must be hard and tough enough to resist crushing, degradation and disintegration and be able to transmit loads from the pavement surface to the underlying layers and eventually ...
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The testing machine then places the measure, with the aggregate in it. An impact load is exerted by releasing a hammer from a known height to strike the aggregate. The impact value is calculated as the resulting percentage of fines generated. Procedure. Collect the aggregate pattern passing via a 12.5 mm sieve and retained on a 10 mm sieve.
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So, by AIV Test, we can find out the response of aggregates to sudden loading. If the result is satisfactory, we use those aggregates in pavement. If not, aggregates are rejected. Read More: Aggregate Crushing Value Test – Procedure and …
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Impact Test Fig-3 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 …
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Procedure of Aggregate Impact Test. The given procedure is for testing the impact resistance of aggregates that are sized 10.0 mm to 12.5 mm. The first step is to dry the aggregates by heating them at 100-110° C for 4 hours and cooling them. The test material is then obtained by sieving the aggregates through 12.5 mm and 10.0 mm IS sieves, and ...
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2. ABSTRACT In the material testing laboratory, a Charpy impact test was performed on three different types (hot,cold,and steel alloy)of steels testing each variety at four different temperatures (32°C(RT), 100°C,0°C and …
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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.
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Objective. To estimate the aggregate impact value of given sample. IS Standards used:IS: 2386(Part-4)-1963 Need and scope: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 compressive load.The property of a material to resist …
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Aggregate Impact Test - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document contains the table of contents for a lab report on determining the aggregate impact value of road construction materials. It includes sections on introduction, objectives, problem statement, apparatus and materials, procedure, data analysis, discussion, conclusion, …
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The test sample retained and passing on 2.36mm test sieve shall then be weighed. Calculate the weight of test sample passing 2.36mm sieve with the weight of whole test sample filled in the cup and report test results. …
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Distinction is made between the density of aggregate particles as determined by this test method, and the bulk density of aggregates as determined by Test Method C 29/C 29M, which includes the volume of voids between the particles of aggregates. 1.3 This test method is not intended to be used with lightweight aggregates. 1.4 The values stated ...
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2. 8/16/2019 Aggregate Testing 2 Importance of Testing Aggregates form major part of pavement structure (88-96% by weight, 80% by volume) Load transfer by grain to grain contact Are used in construction of pavements using cement concrete, bituminous material and in WBM / WMM Have to bear load stresses and resist wear Are also subjected to impact due to moving loads and …
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Aggregates lab report.PDF - Free download as PDF File (.pdf), Text File (.txt) or read online for free. The document records the results of experiments conducted on aggregates to determine various properties. It includes procedures to determine specific gravity, bulk density, void content, impact value, abrasion value and crushing value of coarse aggregates as well as grain size …
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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. 2.
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Aggregate impact value test experiment - Download as a PDF or view online for free. ... PROCEDURE • The sample was cleaned by water and cloth to free from dust. • The sample was dried by oven up to 4 hours. • Sieve …
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a) IS codes for Impact Test: IS 2386(Part 4):1963; b) Apparatus used for Impact Test: Aggregate impact apparatus; IS sieves 12.5 mm, 10.0 mm, and 2.36 mm; Cylindrical measure and Cylindrical Cup; Weighing machine; …
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To evaluate the toughness of a stone i.e. the resistance of the aggregates to fracture under repeated impacts is called Impact Test. This test is done to determine the aggregate impact value of coarse aggregate as per IS 2386 (Part-IV) 1993. Aggregate Impact Value Test as per IS 2386 (Part-IV) 1993. Theory and Scope
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Why do we use aggregate impact value test? The aggregate impact value test is done to test the compressive strength of aggregate when sudden and …
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The aggregate impact value indicates a relative measure of the resistance of an aggregate to a sudden shock or an impact, which differs from its resistance to a slow gradually increasing compressive load. ... Test Procedure. The impact machine shall rest without wedging or packing upon the level plate, block or floor, so that it is rigid and ...
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The apparatus of the aggregate impact value test consists of: A testing machine weighing 45 to 60 kg and having a metal base with a plane lower surface of not less than 30 cm in diameter. The level and plane concrete floor …
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Test method. The procedure for conducting an Aggregate Impact Test (AIV) is as follows: Prepare the test sample by selecting aggregates sized between 10.0 mm and 12.5 mm. Dry the aggregates by heating at 100-110° C for 4 hours or until constant mass is achieved, and then cool them. Sieve the aggregates through 12.5 mm or 14mm and 10.0 mm sieves.
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