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

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 10mm and 2 36mm A cylindrical metal measure of 75mm dia and 50mm depth A tamping rod of 10mm circular cross section and 230mm length rounded at one end and Oven

The aggregate impact value should not exceed 45 by weight of the aggregate for concrete other than the wearing surface The aggregate impact value should not exceed 30 by weight for a concrete wearing surface such as runways roads pavements and floors 10 IS 2386 Part 4 Average impact value of steel slag is 13 90

AASHTO T 96 or ASTM C 131 Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine Summary A sample of aggregate retained on the No 12 1 70 mm sieve is placed inside a rotating steel drum containing a specified number of …

AGGREGATE IMPACT VALUE TEST Basie Points Based on IS 2386 part 4 Toughness is determined Measures the resistance to sudden impact or shock Asses the suitability for road construction APPARATUS 1 Impact testing machine 2 Cylindrical measure d=75mm D=80mm 3 …

Jul 14 2018· Aggregate Impact Value Test AIV test is conducted to determine the Aggregate Impact Value of Coarse aggregate 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 compression load

Any Concrete work before must be Test on aggregate because of sure working quality of Concrete Difference type of test no aggregates as per below tests point out of aggregate tests Sampling of Aggregate Tests Aggregate Crushing Value Impact Value of Coarse Aggregate Sieve Analysis Test of Coarse Aggregates Flakiness Index of Aggregate Elongation Index …

Jan 31 2015· Aggregate impact value Calculation And uses 1 Created by Shahryar CO 2 This test is done to determine the aggregate impact value of coarse aggregates AIV is basically a ratio of 2 36mm sieved aggregate to 14mm aggregate sieve The apparatus used for determining aggregate impact value of coarse aggregates is Impact testing machine Sieves of sizes 14mm 10mm and …

Jan 23 2018· AIM To determine the aggregate impact value of coarse aggregates as per IS 2386 Part IV - 1963 APPARATUS i Impact testing machine conforming to IS 2386 Part IV - 1963 ii IS Sieves of sizes - 12 5mm 10mm and 2 36mm iii A cylindrical metal measure of 75mm dia and 50mm depth iv A tamping…

Aug 29 2019· 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 …

Procedure of Aggregate Impact value test The test sample normally aggregates sized 10 0 mm to 12 5 mm the aggregates should be dried by heating at 100-110 0C for a period of 4 hours and cooled

Jun 22 2014· The aggregate impact value is expressed as the percentage of the fines formed w r t the total weight of the sample Aggregate Impact Value AIV = 100 M2 M1 Where M1 =Mass of the test specimen M2 = Mass of the test specimen passing 2 36 mm test sieve

Experiment No 4 Determination of the aggregate impact value of different coarse aggregate samples BS 812 Scope significance Aggregate Impact Value The aggregate impact value gives a relative measure of the toughness or the resistance of aggregate sudden shock or impact is not proportional to the resistance to a slowly applied compressive load

Tests For Aggregates And Bricks MAY 2001 Page 7 26 7 6 Aggregate Impact Value 7 6 1 Scope The aggregate impact value gives a relative measure of the resistance of the aggregate to sudden shock or impact The particular purpose which an aggregate is meant to serve requires the aggregate to

Jun 14 2012· Aggregate impact value test 1 Aggregate Impact Value TestAim To conduct a test to determine aggregate impact value of coarseaggregate Note Aggregate Impact Value gives a relative measure of the resistanceof an aggregate to a sudden shock or impact which differs fromcrushing strength IS 2386 Part IV Apparatus Impact Testing Machine Tamping Rod Sieves 12 5mm 10mm …

Jul 16 2014· Aggregate impact value test gives an indication of aggregate s toughness property i e property of a material to resist impact Aggregate impact values are used to classify the stone aggregates with respect to toughness property as given below Aggregate impact value Toughness Properties 10 Exceptionally tough Strong 10 20 Very tough Strong …

Determination of the aggregate impact value of different coarse aggregate samples BS 812 Scope significance Aggregate Impact Value The aggregate impact value gives a relative measure of the toughness or the resistance of aggregate sudden shock or impact is not proportional to the resistance to a slowly applied compressive load

Nov 30 2017· Toughness is the property of material which indicate its capacity which impact in sudden Tougher the aggregate more suitable for wearing surface such as road surface Lower the impact value stronger the aggregate again the impact these for good quality concrete aggregate with lower AIV Aggregate Impact Value is prepared

their disintegration due to impact This characteristic is measured by impact value test The aggregate impact value is a measure of resistance to sudden impact or shock which may differ from its resistance to gradually applied compressive load 3 APPARATUS The apparatus of the aggregate impact value test as per IS 2386 Part IV 1963

Oct 09 2018· Basically the aggregates impact value is aggregate which provides a relative measure of the resistance of an aggregate to sudden shock or impact However it can be explain as the aggregate crushing value which is defined as a ratio of the weight

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 10mm and 2 36mm A cylindrical metal measure of 75mm dia and 50mm depth A tamping rod of 10mm circular cross section and 230mm length rounded at one end and Oven

Sep 06 2018· Object-This Method of test covers the procedure for determining the aggregate impact value of coarse aggregate Apparatus-The apparatus shall consist of the following a An impact testing machine of the general from shown in below and complying with the following 1

Aggregate Impact Value - Civil Engineering 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 10mm and 2 36mm A cylindrical metal measure of 75mm dia and 50mm depth A tamping rod of 10mm circular cross section and 230mm length rounded at one end and Oven

As per IS 2386 IV 9377 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

Aggregate impact value = W2 W1 x100 9 52 Result Theory Fineness modulus of coarse aggregates represents the average size of the particles in the coarse aggregate by …

Aggregate impact value The value of aggregate impact test = W1 W2 100 The value of aggregate impact test should not be more than 45 by weight of aggregates used for concrete other than wearing surface An impact value 35 is permissible for the bituminous macadam Maximum permissible impact value for the water bound macadam is 40

The aim of aggregate impact test is to determine the relative measure of the resistance of aggregate to sudden shock or impact in which in some aggregate differs from its resistance to a slowly applies compressive load The property of a material

The aim of aggregate impact test is to determine the relative measure of the resistance of aggregate to sudden shock or impact in which in some aggregate differs from its resistance to a slowly applies compressive load The property of a material

The aggregate impact value is a measure of resistance to sudden impact or shock which may differ from its resistance to gradually applied compressive load Procedure o f 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

Coarse aggregate is used to describe particles larger than 4 75 mm and the term fine aggregate is used for particles smaller than 4 75mm Fine aggregates contain particles in the size range 75 µm to 4 75 mm and coarse aggregates from 4 75 to about 40 mm except for mass concrete which may contain particles up to 150 mm

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