Oct 27, 2017· The Impact value of an aggregate is the percentage loss of weight particles passing 2.36mm sieve by the application of load by means of 15 blows of standard hammer and drop, under specified test condition. AIV gives A relative measure of the resistance of an aggregate to sudden impact, which is differs from withstand to slowly applied ...

Ver artículoMar 26, 2014· design by Dóri Sirály for Prezi AGGREGATE IMPACT TEST In conclusion,the percentage of aggregate's 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

Ver artículoFeb 08, 2012· 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 Value.The AIV is normally about 105 per cent of the Aggregate Crushing Value and itcan be used for the same purpose. For weak aggregates, the required load ...

Ver artículoThe 10 per cent Fines Aggregate Crushing Value is the force in kN required to crush a sample of -13,2+9,5mm aggregate so that 10 per cent of the total test sample will pass a 2, 36 mm sieve. 2 APPARATUS As in SABS Method 842. 3 METHOD Follow SABS Method 842. 4 CALCULATIONS

Ver artículoWith aggregate of aggregate impact value (AIV) 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 14. mm BS test sieve and retained on a 10.0 mm BS test sieve. ...

Ver artículoView lab AIV full.docx from ENGINEERIN CIVIL ENGI at Universiti Putra Malaysia. [AGGREGATE IMPACT VALUE] March 26, 2015 TABLE OF CONTENTS WORK OF

Ver artículoAggregate crushing value < 45% for aggregates used for concrete for non-wearing surfaces and <25% for wearing surfaces like runways and roadways. Discussion: 1. Sample can expel from the mound because the mound not closed.

Ver artículoJul 01, 2019· The apparatus of the aggregate impact value test consists of: A testing machine weighing 45 to 60 kg and having a metal base with a plane lower surface of not less than 30 cm in diameter. Level and plane concrete floor of minimum 45 cm thickness are used to …

Ver artículoAggregate 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.

Ver artículoAggregate 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%.

Ver artículoaggregate 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,

Ver artículoSep 12, 2015· 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 = (W1/W2)*100. Aggregates to be used for wearing …

Ver artículoFeb 22, 2010 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 of 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 ...

Ver artículoNigerian the aggregate impact value (AIV) an d ... RESULTS AND DISCUSSION . ... The aggregate crushing value is an essential index in the construction of road bases and is defined as the mass ...

Ver artículoProcedure. Step 1 – First, the aggregate sample sieve through 12.5mm sieve and collect it which is retained in 10 mm sieve. Step 2 – Now, the sample should be dried through the oven up to 4 hours at 100 deg to 110 deg. Step 3 – Then, the aggregate sample should be filled …

Ver artículoJan 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 ...

Ver artículoThe cup is fixed firmly in position on the base of the M1 - (M2+M3) 1.0 g 1.9 -1.7 -0.8 the aggregate impact value and more the aggregate impact value less is the hammer machine and the whole of the test sample from 2 32.7 31.5 33.4 To determine the aggregates toughness of the road aggregates and the cylindrical measure is transferred to the cup.

Ver artículoThe Aggregate Impact Value (AIV) (M2/M1)x100 19.17 % 23.17 %. AIV = M2/M1 * . Average aggregate impact value of the sample is 21.17 %. DISCUSSION 1. Give the impact value of a good aggregate to ensure the strength of the. aggregate used in road construction. -Aggregate impact value is …

Ver artículoJan 12, 2017· 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 100-110° C for a ...

Ver artículoJun 06, 2021· Answer questions about aggregate impact value lab report discussion, reporting requirements to do you will be impacted the labs, we believe are subjected to. Notes can generate any issued patents and aggregate crushing value test is impacted by a financial condition and files that useful adjunct faculty to predict trends in. The test is ...

Ver artículoI'loviiuvs, 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 LAAV/AIV for Charnockite/ ( lumockitic Gneiss is 1.242 + 0.115. The average values for AIV and LAAV of Charnockite/ < h,n …

Ver artículoviii. Weight the aggregate fraction passing the 2.36mm test sieve. ix. Repeat twice the test for the same batch of aggregate sample. DISCUSSION. From laboratory to determine the aggregate impact value thathave been done, 3 tests have done to get the average of AIV.

Ver artículoThe aggregates crushing value test should be performed as per IS code 2386 Part IV. First, fill the sample aggregate with one-third of the cylindrical measure in three layers. Each layer should be tamped 25times freely. After filling the sample aggregate, weigh and record it as W1. …

Ver artículoThis characteristic is measured by impact value test. The aggregate impact value is a measure of resistance to sudden impact or shock ... M2 is the mass of the material passing the 2.36 mm sieve in g 45 604.5 x100 =7.44% DISCUSSION In the results obtained one can tell whether the aggregate used is suitable for road construction or not if the ...

Ver artículoJul 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. …

Ver artículoThe crushed aggregate sample which is finer than 2.36 mm is separated and expressed as a percentage of the original weight taken in the mould. The percentage of weight passed through the 2.36m IS sieve is known as Aggregate crushing value.. In situations, when the aggregate value 30 or higher the result may be a mistake and in such cases, the "ten percent fines value" should be determined ...

Ver artículoAggregate impact value test discussion Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Aggregate impact value test discussion, quarry, aggregate, and different kinds of minerals.

Ver artículoSep 14, 2008· 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)- 1963,IS Sieves of sizes – 12.5mm, 10mm and 2.36mm, A […]

Ver artículoTen percent fines value is a measure of the resistance of aggregate crushing subjected to loading and it is applicable to both weak and strong aggregate. Fine aggregates are defined as those passing 2.36mm sieve. The test aims at looking for the forces required to produce 10% of fine values (i.e. weight of fines aggregates/weight […]

Ver artículoDiscussion of aggregate impact value test Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Discussion of aggregate impact value test, quarry, …

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