The aggregate impact value is the measure of resistance to sudden impact of shock which may differ from its resistance to gradually applied compressive load Equipments The apparatus as per IS 2386 Part-IV 1993 consist of...

May 27 2020 0183 32 Therefore aggregate Impact value = B/A 100 Where B= It is termed as the weight of fraction passing 236 mm IS sieve A= It is termed as the weight of the Oven-dried sample Conclusion It is noted that the aggregate impact value should not be greater than 45 by its weight...

412 AGGREGATE IMPACT VALUE AIV TEST This tests was performed by the Aggregates Impact Value AIV Apparatus to determine the aggregate impact value which provides a relative measure of the resistance of an aggregate to sudden shock or impact The following results were obtained from this test Table 3AIV data sheet Sample no 1 2 Average Total weight of sample m1 4711 4572 Wt...

Aggregate is a granular material obtained by processing natural materialsBS882 splits aggregate into coarse and fine elements coarse being described as gravel or crushed rock and fine being described as sandAggregate consists of particles of a rock of a controlled particle size distribution used in the construction of a building or civil engineering structure...

The aggregate impact value gives a relative measure of the resistance of an aggregate to sudden shock or impact which in some aggregate differs from its resistance to a slow compressive load The test sample consists of aggregate the whole of which passes a...

May 07 2013 0183 32 Objective For determination of the aggregate impact value of coarse aggregate which passes 125 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 Properti Equipment Apparatus Aggregate Impact Test Machine Sieves 125mm 10mm Cylindrical metal measure Tamping Rod...

Standards BS 812 112 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...

The crushing value of aggregates is measured in the ratio between the crushed aggregates obtained from the IS sieve 236mm and the weight of the dried aggregate sample At least three samples should be tested from the same batch and average value to get accurate results The crushing value of aggregate = W2/W1 x 100 Lab Report...

Dec 08 2017 0183 32 In this video we will see the procedure of determining aggregate impact value as per IS 2386 PART4...

Aggregate Impact Value = W B W A 100 Where W A is Weight of oven-dried sample W B is Weight of fraction passing through 236-mm IS Sieve Reporting of Results The mean of the two results shall be reported to the nearest whole number as the aggregate impact value of the tested material...

Now the final report of aggregate impact value is calculated as Final report of aggregate impact value test Weight of oven dried aggregate sample A = 3328 gm Weight of fraction dust of aggregate passing through 236 mm sieve B = 232 gm Aggregate impact value...

Mar 25 2020 0183 32 The general test procedure of the aggregate impact value test is briefly described below Objectives of Impact Test 1 To assess the suitability of the aggregate to be used in the highway pavement 2 To determine the aggregate impact value Apparatus Required 1 An impact testing machine weighing between 45kgs to 60 kgs with a metal base...

The aggregate impact values are strong on the average by about 10 to 30 than 8 the aggregate crushing valu Various agencies have specified the maximum permissible aggregate impact values for the different types of pavements those recommended by the roads for deciding the suitability of soft aggregates in base course construction this...

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 compressive load apparatus required Fig 1 Balance Balance should be accurate upto 1 g...

Feb 08 2012 0183 32 The aggregate impact value AIV is B AIV = 100 1 ARESULTSAn average is taken of the two tests and the result is recorded to the nearestwhole number as the Aggregate Impact ValueThe AIV is normally about 105 per cent of the Aggregate Crushing Value and itcan be...

Sep 20 2018 0183 32 This video Animation Animated Video explains how to determine aggregate impact value Aggregate Impact Test Aggregate test Coarse aggregate Test Civ...

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 π2 π΄πΌπ = 100 π1 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 sieve in...

Oct 07 2019 0183 32 Aggregate Impact Value The property of a material to resist impact is known as toughness Due to movement of vehicles on the road the aggregates are subjected to impact resulting in their breaking down into smaller piec 3 EngrSayed Shajedul Hasan Apparatus for Aggregate Impact Test Aggregate Impact Value Apparatus Balance i A testing...

Apr 17 2019 0183 32 Any aggregate economic phenomena that cause changes in the value of any of these variables will change aggregate demand If aggregate supply remains unchanged or is...

Dec 26 2020 0183 32 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 The impact is provided by a standard hammer falling 15 times under its own weight upon the aggregate in a cylindrical container Following are the recommended AIVs 25 when the...

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/ W1 W2 100 = 80 gm / 300 gm = 2667 Impact Value Where W1= Weight of...

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...

Mar 30 2020 0183 32 The aggregate impact value is defined as a relative measure of the resistance of an aggregate to sudden shock or impact which in some aggregates may differ from its resistance to a slow compressive load...

Aggregate Impact value Classification < 10 Exceptionally strong 10 - 20 strong 20 - 30 satisfactory for road surfacing >35 Weak for Road Construction...

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