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DETERMINATION OF AGGREGATE IMPACT VALUE (AIV) (BS 812-112) Scope: This Part of BS 812 describes methods for the determination of the aggregate impact value (AIV) which gives a relative measure of the resistance of an aggregate to sudden shock or impact. Principle A test specimen is compacted, in a standardized manner, into an …
5.16 The Heavy Impact Value has application 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 Impact Testing Machine is used to determine the aggregate impact value (AIV) which provides a relative measure of the resistance of an aggregate to sudden shock or impact.
Features of Aggregate Impact Value Apparatus (AIV)Standard BS 812: Provides methods for the sampling and testing of aggregates from various sources, including natural and recycled materials, for use in construction. It covers procedures for determining the physical and mechanical properties of aggregates, such as particle size distribution, density, …
Aggregate Impact Tester with Blow Counter is used to determine aggregate impact value and has been designed in accordance with ASTM and BS Standards and hammer is provided with a locking arrangement.
The test determines the aggregate's resistance to sudden impact or shock, which may differ from its resistance to gradually applied compressive load. The …
Aggregate Impact Value (AIV) The apparatus has been designed in a particularly heavy duty form, with specially hardened steel surfaces for minimum wear. The assembly is heavily plated to ensure corrosion resistance and forms a rigid frame around the quick-release trigger mechanism, which ensures an effective free fall of the hammer when …
For determining the aggregate impact value of coarse aggregate. Consists of base weighing between 20-30 kg with a lower surface of not less than 30 cm and support columns to from a rigid frame work around the quick release trigger mechanism to ensure an effective free fall of the hammer during test.
Aggregate Impact Testing Machine for determining the Impact Value of coarse aggregate. Specification of It consists: Heavy circular base with two vertical guides fitted with a cross bar at the top. Hammer of 13.75 kg mass which can be raised and allowed to fall freely through 380 + 5 mm with locking arrangement. Cylindrical cup, a metal …
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The Aggregates Impact Value (AIV) Apparatus is used to determine the aggregate impact value which provides a relative measure of the resistance of an aggregate to sudden shock or impact.
Used to determine the impact value of aggregates and select them for a given application. The machine has a trip-action hammer release, blow counter device and a built-in operator safety device. Manufactured in …
compression Testing Machine. It is for the determination of the aggregate impact value and has been designed in accordance with IS-2386 (Part IV).
This Apparatus is used to determine aggregate impact value of coarse aggregate. The hammer of the tester fall freely from 380 mm height on coarse aggregate for 15 times/15 sec.the crushed aggregate removed from the cup,then sieved and weighed.
Impact test of aggregate is peformed to check impact resistance of stone aggregates. Impact testing machine is used to perform this test.
This study examines the mechanical and durability properties of five different concrete mixes using the construction and demolition waste as partial replacement of coarse aggregate.
The Aggregate Impact Value (AIV) test, outlined in IS 2386 Part IV, evaluates the impact resistance of aggregates. This is performed with an impact testing apparatus, using a specific procedure and sample preparation method. Aggregates acceptable for wearing surfaces in concrete should not exceed a 45% impact value and …
Organic matter and certain chemicals can detrimentally affect aggregate performance and test kits are available for chloride, sulphate and organic impurities. ELE International …
The aggregate impact value test is an important test of aggregates. It is done to obtain the resistance and impact of aggregates (stones). In this test a machine is used, which is called impact testing machine.
A device for measuring the aggregate impact value of coarse aggregate as per IS: 2386 (Part - IV). It consists of a base, a hammer, a cup, a tamping rod and a blow counter …
This Characteristic is measured by impact value test. The aggregate impact value is a measure of resistance to sudden impact or shock, which may ... Apparatus: 1. Impact Testing Machine: Impact testing machine conforming to IS: 2386 (Part IV) - 1963, as shown in Figure 1. 2. Metal Cylinder: cylindrical metal measure of 75 mm dia. and 50 …
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Aggregate Testing Equipment Manufacturer of a wide range of products which include los angeles abrasion testing machine - with presettable digital counter, aggregate impact testing machine, gyratory sieve shaker - for 20cm dia sieves with digital timer, aggregate crushing value apparatus, pycnometer bottle and accelerated aggregate (roadstone) …
The procedure for conducting an Aggregate Impact Test (AIV) is as follows: ... Set up the impact machine on a rigid, level surface with the hammer guide columns vertical. Fix the cup firmly to the base of the machine and place the entire test sample in it. Compact the sample by giving it 25 gentle blows with the tamping rod.
Aggregate Testing Aggregate testing is performed to evaluate the properties of aggregates for asphalt and concrete mixes. ... ASTM C131 – Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine; ASTM C136 / AASHTO T27 – Sieve Analysis of Fine & Coarse Aggregates;
Aggregate Impact Testing Machine: Consisting of a circular base with vertical publications and a hammer of thirteen.Five to 14 kg mass. Cylindrical metallic degree with an inner diameter of 75 mm and a height of fifty mm.
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Aggregate Impact Test Procedure as Per IS 2386 Part-4: Equipment For Aggregates Impact Test: Aggregate Impact Testing machine: An Impact testing machine for aggregate comprising the following. The …
AGGREGATE IMPACT VALUE This test is done to determine the aggregate impact value of coarse aggregates as per IS: 2386 (Part IV) – 1963. 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, …
This document describes an aggregate impact testing machine used to evaluate the toughness and resistance to fracture of road stones under repeated impacts. The machine consists of a metal base, cylindrical metal measure, tamping rod, and IS sieves. To test a sample, aggregates are dried, graded, placed in the measure, and …