Aggregate Crushing Value Test -Determine Aggregate
May 05, 2010· Aggregate Crushing Value Test The objective of this test is to: Determine the aggregate crushing value of coarse aggregate; Assess suitability of
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Read MoreMay 05, 2010· Aggregate Crushing Value Test The objective of this test is to: Determine the aggregate crushing value of coarse aggregate; Assess suitability of
Read MoreAGGREGATE CRUSHING VALUE 1.Objective The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. With aggregate of aggregate crushing value 30 or higher, the result may be anomalous, and in such cases the ten percent fines value should be determined instead.
Read MoreMay 17, 2019· Aggregate crushing value is defined as the percentage by weight of the crushed (or finer) material obtained when the test aggregates are subjected to a specified load under standardized conditions, and the strength of the aggregate used in road construction is expressed by numerical index. Aggregates with lower crushing value show a lower
Read MoreObjective: 1. Determine the aggregate crushing value of coarse aggregate. 2. Assess suitability of coarse aggregates for use in different types of road. Theory: The " aggregate crushing value " give a relative measure of the resistance of
Read MoreThe aggregates crushing value test should be performed as per IS code 2386 Part IV. First, fill the sample aggregate with one-third of the cylindrical measure in three layers. Each layer should be tamped 25times freely. After filling the sample aggregate, weigh and record it as W1. Now fill the aggregate in the mould along with the plunger on top.
Read MoreMay 21, 2020· Therefore, aggregate used for such propose should have sufficient toughness to resist their disintegration due to the impact. This important property of aggregate is determined by the aggregate impact value test. This resistance of aggregate may differ from resistance to gradual load which we measure in the crushing value test.
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Read MoreAug 29, 2015· - Aggregates Crushing Value (ACV) Aggregates Abrasion Value (AAV) c) How is aggregate impact value expressed ? The aggregate impact value is a strength value of an aggregate that is determined by performing the Aggregates Impact Test on a sample of the aggregates. 8. d) Aggregate impact value material A is 20 and that of B is 45.
Read MoreAGGREGATE CRUSHING VALUE TEST OBJECTIVE. TO DETERMINE THE CRUSHING VALUE OF AGGREGATE. APPARATUS REQUIRED. As per IS 2386 part â€“IV: 1. Steel cylinder with open ends and internal diameter 152 mm, square base plate, plunger with piston of diameter of 150mm 2. Cylindrical measure having internal diameter of 115mm and height 180mm
Read MoreThis test is repeated once or twice and the average crushing value of the aggregate is determined. The average crushing value in the different tests is the actual crushing value of aggregate. Important points to remember. It is recommended that the crushing value of aggregate should be less than 30%.
Read Moreobjective aggregate crushing value test Aggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load. Coarse aggregate crushing value is the percentage by weight of the crushed material obtained when test aggregates are subjected to a
Read MoreDETERMINATION OF AGGREGATE CRUSHING VALUE 2.1 Object This method of test covers the procedure for determining aggregate crushing value of coarse aggregate. NOTE 1 -The â€˜aggregate crushing valueâ€™ gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. With aggre-
Read MoreTest results obtained from aggregate crushing value test are summarized in Table10: Table 9Aggregate crushing value results Statistics A.I.V. (%) Range 17-41 Mode 24 Specified maximum 25 for heavy duty concrete finishes limit 30 for pavement wearing surfaces 45for others j. 10% Fines Value Standard Test Method and Specification used: BS
Read MoreMay 07, 2013· Objective For determination of the aggregate impact value of coarse aggregate, which passes 12.5 mm. IS sieve and retained on 10 mm. IS sieve. Reference Standards IS: 2386(Part IV)-1963 Methods of test for aggregate for concrete Part IV Mechanical Properties. Equipment & Apparatus Aggregate Impact Test Machine Sieves (12.5mm,10mm) Cylindrical metal measure Tamping Rod
Read MoreAug 29, 2015· - Aggregates Crushing Value (ACV) Aggregates Abrasion Value (AAV) c) How is aggregate impact value expressed ? The aggregate impact value is a strength value of an aggregate that is determined by performing the Aggregates Impact Test on a sample of the aggregates. 8. d) Aggregate impact value material A is 20 and that of B is 45.
Read More5. A mixer for mixing the aggregate sample and bituminous binder. The procedure of Stripping Value Test on Aggregates. The procedure of the stripping value test involves the following series of steps: 1. A well-cleaned aggregate sample passing through 20mm IS
Read MoreThe test aims at looking for the forces required to produce 10% of fine values (i.e. weight of fines aggregates/weight of all aggregates = 10%). This test is very similar to Aggregate Crushing Test in which a standard force 400kN is applied and fines material expressed as a percentage of the original mass is the aggregate crushing value.
Read MoreCompaction factor test-Objective, Procedure, advantages, disadvantages What is Compaction factor test? The compaction factor test for concrete was developed in the UK by Glanville in 1947 and the degree of compaction is measured by it. This test gives the seasonably a reliable assessment of the workability of concrete.
Read MoreDec 15, 2017· Aggregate Impact Values and Aggregate Crushing Values are often numerically very similar, and indicate similar aggregate strength properties. Classification of aggregates using Aggregate Impact Value is as given below: Aggregate Impact Value Classification <20%.= Exceptionally Strong 10 20% .=Strong 20-30%. =Satisfactory for road surfacing
Read MoreProcedure 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.
Read Moreobjective aggregate crushing value test. aggregate impact value test AGGREGATE CRUSHING VALUE This test helps to determine the aggregate crushing value of coarse aggregates as per IS: 2386 (Part IV),1963. Read more. Aggregate Testing Service Laboratory Crushing Value. Crushing Value. This test is a measure of the strength of aggregate, which
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