The purpose to get the Aggregate Impact value is to determine the classification of aggregate to determine that aggregate is Suitable for what work and either the aggregate can carry the big load or not From the test have been do the value of AIV is 292 for test 1 298 fortest 2 and 298 for test 3 The average of AIV is 296 From the test

Aggregate Impact Value AIV Calculate the mean of the two results to the nearest whole number Report the mean as the aggregate impact value unless the individual results differ by more than 015 times the mean value In this case repeat the test on two further specimens

20 THEORY 2 Basically the Aggregate Impact Value AIV is the percentage of fines produced from the aggregate sample after subjecting it to a standard amount of impact The standard amount of impact is produced by a known weight ie a steel cylinder falling from a set height a prescribed number of times onto of aggregate of a standard

Jan 31 2015 Aggregate impact value Calculation And uses 1 Created by Shahryar amp CO 2 This test is done to determine the aggregate impact value of coarse aggregates AIV is basically a ratio of 236mm 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

The ratio of the weight of fines formed to the total sample weight in each test shall he expressed as a percentage the result being recorded to the first decimal place Aggregate Impact Value BA X 100 where A weight in g of saturated surface dry sample B

Jul 16 2014 Aggregate impact value test gives an indication of aggregates toughness property ie 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

Apr 10 2013 Impact factor Wikipedia the free encyclopedia The impact factor IF of an academic journal is a measure reflecting the 2005 and the other half of the citations precede 2001 the aggregate impact factor for a the author to propose the twimpact factor which is defined as the number of More detailed

04 In reporting the results of a test or analysis made in accordance with this standard if the final value observed or calculated is to be rounded off it shall be done in accordance with IS21960t 1 SCOPE 11 This standard covers the procedure for determining the aggregates impact value ofsoft coarse aggregate used for bases and sub

With aggregate of aggregate impact value 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 140 mm BS test sieve and retained on a100 mm BS test sieve

Advantages of aggregate impact value test Products As a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any sizereduction requirements including Advantages of aggregate impact value test quarry aggregate and different kinds of minerals

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 1963IS Sieves of sizes 125mm 10mm and 236mm A cylindrical

Aggregate Impact Value AIV test indicates the toughness of aggregates It is measured as percentage of aggregates passing through 236 mm IS sieve to the weight of aggregates taken Higher the AIV more aggregates gets broken during impact lower the toughness or weak aggregate

US 10001500 Set 1599 aggregate impact value test products are offered for sale by suppliers on Alibabacom of which testing equipment accounts for 3 A wide variety of aggregate impact value test options are available to you There are 68 suppliers who sells aggregate impact value test on Alibabacom mainly located in Asia

Aggregate Impact Value AIV test BS 812 Part 3 1975 A surface dry standard size 14 10 mm aggregate sample is placed in a cylindrical cup of prescribed dimensions and compacted The sample is subjected to 15 blows of a hammer 135 15 kg diameter 100 mm falling freely over a height of 380 mm while the time interval between the

Test AIV Aggregate Impact Value SS 1974 The AIV Aggregate Impact Value is a standard test procedure by which the impact strength of aggregates is tested Just like in Protodyakonovs test the material used consists of irregularly shaped particles of the

Observations and Calculations Calculate the aggregate impact value AIV expressed as a percentage to the first decimal place for each test specimen from the following equation 2 100 1 Where M 1 is the mass of the test specimen in g M 2 is the mass of the material passing the 236 mm test

Aggregate Impact Values AIVs below 10 are regarded as strong and AIVs 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

Iloviiuvs and tested for their Aggregate Impact Values and Los Angeles Abrasion Values The results urn1 interpreted in different ways and it was found that the ratio of LAAVAIV for Charnockite lumockitic Gneiss is 1242 0115 The average values for AIV and LAAV of Charnockite hn Mockitic Gneiss rock are 23 and 29 respectively

Chin Aggregate Impact Value Test AIV is used to determine the impact value of coarse aggregate The impact value was determined by finding the percentage loss of weight particles passing 236mm sieve with 15 blows of standard hammer drop Besides the test also provides a relative measure of the resistance of an aggregate on sudden shock or

Apr 13 2020 For this reason ten percent fines value test is used 3 Toughness Toughness can be defined as the resistance of aggregate to failure by impact Toughness of aggregate is determined by aggregate impact value AIV test which is similar to the ACV test with only difference that the load applied is impact

Feb 02 2013 Applied Petrography Group Special Report SR3 Part 1 Draft for Aggregate impact value AIV new use Smith and Collis 1993The European definition is an aggregate resulting from the processing of inorganic or More detailed

Nov 30 2017 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 AIV should not be exceed 30 for concrete used for wearing surface such as road work or runways or airport

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 times15 secthe crushed aggregate removed from the cup then sieved and weighed The ratio of the weight passing 236mm sieve and weight of oven dried sample is Aggregate Impact value

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 1963IS Sieves of sizes 125mm 10mm and 236mm 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

Mar 21 2018 Aggregate Impact Values AIVs below 10 are regarded as strong and AIVs 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 Recommended Aggregate Impact Test Values

A small portion of 1410 mm sized coarse aggregate particles is confined in a steel pot and subjected to 15 blows by a small hammer in a standardised test rig after which the aggregate impact value AIV is determined from the fine material generated expressed as a percentage of the original weight of the test portion BS 812 Part

AGGREGATE IMPACT VALUE AIV This test provides a relative measure of the resistance of coarse aggregate to sudden shock or impact Figure 2 7 Aggregate impact value apparatus AGGREGATE CRUSHING VALUE ACV This test provides a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load

Sep 30 2019 Aggregate Impact Value Test This test gives the Aggregate Impact Value AIV which is an index of the resistance of aggregate to sudden shock or impact The apparatus used for this test is called Impact Testing Machine A sample of aggregates in surface dry condition which pass through 125 mm sieve and are retained on 10 mm sieve are

UTA0650 The Aggregate Impact Value Testing Apparatus is robustly designed to determine the Aggregate Impact Value AIV of aggregates which provides a relative measure of the resistance of an aggregate to sudden shock or impact The number of blows delivered to the sample is automatically documented by the counter that is fitted to the machine

Dec 15 2017 Aggregate Impact Value AIV is the percentage of fines produced from the aggregate sample after subjecting it to a standard amount of impact The standard amount of impact is produced by a known weight ie a steel cylinder falling a set height a prescribed number of times onto an amount of aggregate of standard size and weight retained in

The Aggregate Impact Value Testing Apparatus meets with BS 812 it is robustly designed to determine the Aggregate Impact Value AIV of aggregates which provides a relative measure of the resistance of an aggregate to sudden shock or impact The counter fitted to the machine automatically records the number of blows delivered to the sample

Standards BS 812112 General Description 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 The counter fitted to the machine automatically records the number of blows delivered to the sample

DETERMINATION OF AGGREGATE CRUSHING VALUE 21 Object This method of test covers the procedure for determining aggregate crushing value of coarse aggregate NOTE 1 The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load With aggre

Jan 09 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 The Indian Standard CODE IS 2386 Part IV 1963 is used for procedure and

May 21 2020 Aggregate impact value is the ratio of the weight of the fraction passing through 236 mm weight W2 by the total weight of the sample weight W1 W2 Aggregate Impact Value W2 W1W2 100 80 gm 300 gm 2667 Impact Value Where W1 Weight of the fraction passing through 236 mm IS sieve220 gm

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