
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 specified load under standardized conditions.

Objective: 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

Note:- For strong aggregate, crushing value should be low.For surface courses this value should not exceed more than 30% and for courses not more than 45%. Questions for Discussion. Which property of aggregates is measured by this test?; How aggregate crushing value expressed?

Aggregate Impact Values, (AIV’s), below 10 are regarded as strong, and AIV’s above 35 would normally be regarded as too weak for use in road surfaces. Aggregate Impact Values and Aggregate Crushing Values are often numerically very similar, and indicate similar aggregate strength properties. Aggregate Impact Value; Test Specifications:

“Aggregate Crushing values is a relative resistance of aggregates to crushing under gradually applied compressive load” In situations, when aggregate value 30 or higher the result may be a mistake and in such cases, the “ten percent fines value” should be determined and used instead.

AGGREGATE CRUSHING VALUE This test helps to determine the aggregate crushing value of coarse aggregates as per IS: 2386 (Part IV) 1963. The apparatus used is Cylindrical measure and plunger, Compression testing machine, IS Sieves of sizes 12.5mm, 10mm and 2.36mm

“Aggregate Crushing values is a relative resistance of aggregates to crushing under gradually applied compressive load” In situations, when aggregate value 30 or higher the result may be a mistake and in such cases, the “ten percent fines value

aggregate crushing value test report result conclusion. discussion for aggregate crushing value test. discussion for aggregate crushing value test Milling is also known as grinding it is a material more refining process A . A study

Feb 08, 2012· Aggregate impact and crushing test 1. Impact, 10% Fines & Crushing Tests NANYANG TECHNOLOGICAL UNIVERSITY School of Civil and Structural Engineering LABORATORY PAVEMENT MATERIALS AGGREGATE IMPACT TEST, TEN PERCENT FINES TEST AND AGGREGATE CRUSHING TESTOBJECTIVESTo assess the resistance of an aggregate to mechanical degradation by theAggregate Impact Test, Ten Percent Fines Test and Aggregate

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 suitability in road construction on the basis of impact value.

The crushing value of the taken sample was 24.75%. The crushing value of the sample. below 30% and 40%, therefore the recycled aggregate can be used in both the base course and surface course of a pavement. Fig. 1 Test setup for crushing value

Aggregate crushing Value (percent)=w2/w1*100 26.43 Aggregate crushing value = W2/W1 * 100 = 771/2917 * 100 = 26.43% RECOMMENDED VALUES The suitability of aggregate is adjudged, depending on its proposed use inthe pavement layers. Specified limits of percent aggregate crushing value

conclusion of aggregate impact value test Fruitful Mining. Discussion Of Result Of Aggregate Crushing Value aggregate crushing value conclusion May 5 2010 Aggregate crushing value test provides strength of aggregates for resistance against crushing under loads and is used for roads and pavements If the aggregate crushing value

Discussion Of Result Of Aggregate Crushing Valueaggregate crushing value test report discussion. Aggregate Crushing Value Test Determine Aggregate Crushing

conclusion of aggregate impact value test Fruitful Mining. Discussion Of Result Of Aggregate Crushing Value aggregate crushing value conclusion May 5 2010 Aggregate crushing value test provides strength of aggregates for resistance against crushing under loads and is used for roads and pavements If the aggregate crushing value is 30 or higher the result may be anomalous and in such cases the

Discussion Of Result Of Aggregate Crushing Valueaggregate crushing value test report discussion. Aggregate Crushing Value Test Determine Aggregate Crushing

May 08, 2013· Aggregate crushing Value =(W B /W A) × 100 Record. The mean of the two results is reported to the nearest whole number as the aggregate crushing value of the tested material. Safety & Precautions: Use hand gloves while removing containers from oven after switching off the oven. To wear safety shoes & helmet during the time of test.

number. Report the mean as the Aggregate Crushing Value, unless the individual results differ by more than 0.07 times the mean value. In this case repeat the test on two further specimens, calculate the median of the four results to the nearest whole number and report the median as the Aggregate Crushing Value. A data sheet is given as Form 7.7.1.

Feb 03, 2012· 6.0 Discussion . a) Sample can expel So we can conclude that the aggregate crushing value provides a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. The aggregate are mild tough to have the resistance pressure under traffic wheel loads such as car, lorry, motorcycle and etc.

Mar 31, 2017· Assuming That You Are Refering to Crushing And Impact Tests of Aggregates * Crushing Test Gives Us Idea About Strength of Aggregate. * * Strength : Resistance To Gradual Loading * Impact Test Gives Us Idea About Toughness Of Aggregate. * * Tough.

Apr 10, 2012· Aggregates used in the construction, should be strong enough to resist crushing. If the aggregates are weak, the stability of the structure is likely to be adversely affected. The strength of coarse aggregates is assessed by aggregate crushing test. The aggregate crushing value provides a relative measure of resistance to crushing under gradually applied compressive

An aggregate specimen is compacted into a steel cylinder fitted with a no-friction plunger. The specimen is then loaded via the plunger. The load crushes the aggregate to an extent depending on the crushing resistance of the material. It is measured by a sieving test on the crushed specimen and it is a measure of the aggregate crushing value (ACV).

METHOD B1 THE DETERMINATION OF THE AGGREGATE CRUSHING VALUE 1 SCOPE The ACV of an aggregate as defined hereunder is determined by crushing a prepared confined aggregate sample under a specified, gradually applied compressive load and

The aggregate crushing value (ACV) provides relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Two versions available: 150 (standard) and 75 mm dia. The apparatus comprehend cylinder, plunger, base plate, tamping rod and measure.

Sep 12, 2015· 7 LAB TESTS ON AGGREGATE TO CHECK QUALITY FOR USE IN ROAD WORK. Suryakanta September 12, 2015 The aggregate crushing value provides a relative measure of resistance to crushing under gradually applied crushing load. Soundness test is intended to study the resistance of aggregates to weathering action, by conducting accelerated

Discussion For Aggregate Crushing Value Test. Objective for determination of the aggregate crushing value of coarse aggregate, which passes 12mms sieve and retained on 10 mms sieveeference standard is 2386 part iv-1963 methods of test for aggregate for concrete part iv mechanical propertiesquipment apparatus steel cylinder sieves 12m,10mm cylindrical metal measure

discussion of aggregate crushing value test hasb.co. Aggregate Impact Test Scribd. 3 Nov 2009,The method of test covers the procedure for determining the aggregate impact value of coarse aggregat,Discussion Chief advantage of aggregate impact test is that test equipment and the test procedure are quite simple and it,are less resistant

AGGREGATE 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.
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