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 100110 C for a period of 4 hours and cooled.Get Price
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.
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 2386Part IV1963 Methods of test for aggregate for concrete Part IV Mechanical Properties. Equipment amp Apparatus Aggregate Impact Test Machine Sieves 12.5mm,10mm Cylindrical metal measure Tamping Rod Balance
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Aggregates Impact Test Conforming to IS 2386 Part 41963 With respect to concrete aggregates toughness is also consider. The resistance of the material to failure by impact is known as toughness. The aggregates should therefore have suffic
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 100110 C for a period of 4 hours and cooled.
Aggregate abrasion value W1W2W2 x 100. Impact Test on Aggregates. Impact value of aggregate will give aggregate capability against sudden loads or forces. For this test also aggregate passing through 12.5mm and retained on 10mm sieve is taken and oven dried. Fill the cylinder with aggregate in 3 layers, 25 strokes of tamping for each
The aggregate impact value indicates a relative measure of the resistance of the aggregate to a sudden shock or impact which in some aggregates differs from its resistance to a slow compressive load. From the calculations done we know that the aggregate can be acceptable as their Aggregate Impact value is less then 20 Aggregate Impact Value 10.
To evaluate the toughness of a stone i.e. the resistance of the aggregates to fracture under repeated impacts is called Impact test is done to determine the aggregate impact value of coarse aggregate as per IS 2386 PartIV 1993. Aggregate Impact Value Test as per IS 2386 PartIV 1993
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Therefore, The Impact Value of Aggregate Also Read Test for determination of aggregate crushing value. Important Notes The aggregate crushing value should not be more than 45 for aggregate used for concrete other than wearing surfaces. Also, 30 for concrete used for wearing surfaces such as runway, roads and airfield pavements. References
AGGREGATE IMPACT VALUE TEST AIM To find Impact value of the given aggregate sample. APPARATUS The apparatus consists of an impacttesting machine, a cylindrical measure, tamping rod, IS sieve, balance, tamping rod and oven. PROCEDURE The test sample consists of aggregates passing 12.5 mm sieve and retained on 10 mm sieve and dried in an oven for four hours at a temperature 1000 C to 1100 C
IMPACT VALUE TEST of AGGREGATES Civil Engineering Training, Jobs amp Careers. Aggregate Impact Value Test as per IS Code 2386 part4, hardness test of aggregate Duration 1102.
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. Aggregate Impact Value AIV AIV is the percentage of fines produced from the aggregate sample subjecting it to a standard amount of impact.
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
The aggregate impact value is a calculation of the resistance to abrupt impact, bang or shock, which may vary from its resistance to steadily, applied compressive weight. Procedure The test specimen includes the aggregates of size ranging from 10.0 mm 12.5 mm. Aggregates can be dehydrated by warming them at temperatue of 100110 C for a
Aggregate value definition the total value of a number of smaller sums , added together and treated as an individual Meaning, pronunciation, translations and examples
Utest Material Testing Equipment . Product Code. UTA0650 Aggregate Impact Value AIV Testing Apparatus. Standards. BS 812112. 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.
An impact value 35 is permissible for the bituminous macadam. Maximum permissible impact value for the water bound macadam is 40. The price of aggregate impact testing machine is approximately Rs 4000 to 6000 in India. Must Read
Experiment No. 4 Determination of the aggregate impact value of different coarse aggregate samples. BS 812 Scope amp 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.
Aggregate impact value test gives an indication of aggregates 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 lt10 Exceptionally tough Strong 10 20 Very tough Strong