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.
Results The mean of the three results is reported as the AIV Aggregate Impact Value of the specimen to the nearest whole number. Limits lt 10 Exceptionally strong, 1020 Strong, 2030 Satisfactory for road surfacing amp gt 35Weak for road surfacing.
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 1963,IS Sieves of sizes 12.5mm, 10mm and 2.36mm, A cylindrical metal measure of 75mm
d Determination of Aggregate Abrasion Value, e Determination of the Polished Stone Value, and f Determination of Crushing Strength. 2. DETERMINATION OF AGGREGATE CRUSHING VALUE 2.1 Object This method of test covers the procedure for determining aggregate crushing value of coarse aggregate.
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
In this video , we will see the procedure of determining aggregate impact value as per IS 2386 PART4.
aggregate samples to calculate the LA abrasion loss. The authors found that the LA abrasion test was a consistent method of detecting weak materials and was a means of pre dicting aggregate impact value and aggregate crushing value. Wylde 11 reviewed and investigated the road failures,
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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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.
Aggregate Impact Value Test Specifications Aggregate Impact Value. The test sample shall consist of aggregates the whole of which passes through in B.S. test sieve and is retained on a 38 in B.S. test sieve. The aggregate comprising the test sample shall be dried in an oven for a period of four hours at a temperature of 100110 C and
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.
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. Required Fig. 1 Balance Balance should be accurate upto 1 g Fig. 2 Sieves Seives required are 12.5, 10.0 and 2.36 mm Fig. 3 Impact
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
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 34 aggregate crushing value 34 give a relative measure of the resistance of
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nearest whole number. Report the mean as the aggregate impact value, unless the individual results differ by more than 0.15 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 impact value.
The crushed aggregate is allowed to pass through 2.36 mm IS sieve. And the impact value is measured as percentage of aggregates passing sieve W2 to the total weight of the sample W1. Aggregate impact value W1W2100. Aggregates to be used for wearing course, the impact value shouldnt exceed 30 percent.
design by Dri Sirly for Prezi AGGREGATE IMPACT TEST In conclusion,the percentage of aggregates wear depends on the quality of aggregate. In this test, we can conclude that The loss of aggregate 1663 g The percentage of wear 33.26 Lower abrasion loss values indicate the
dcc3113 determination of aggregate impact value. 1. 1 civil engineering deparment dcc 3122 highway lab report title determination od aggregate impact value course session dcc 3122 geotechnic and highway laboratory prepare by group group a group members 1.
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.
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