Determination of Aggregate Impact Value – Impact Test on Aggregates is done to carry out to: Determine the impact value of the road aggregates, Assess their suitability in road construction on the basis of impact value.
Jan 12, 2017· The aggregates must thus have adequate rigidity to resist their breakdown due to excessive impact. This property is calculated by impact value test. 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:
Feb 08, 2012· The mean of the two test results is reported as the aggregate abrasion value.Discussion The aggregate abrasion test given above is rapid and easy to perform, except for the preparation of testspecimen, which is difficult and time consuming. This test is however carried out commonly in U.K.and a few other countries.
Overview. The Los Angeles (L.A.) abrasion test (Figure 1) is a common test method used to indicate aggregate toughness and abrasion characteristics. Aggregate abrasion characteristics are important because the constituent aggregate in HMA must resist crushing, degradation and disintegration in order to produce a high quality HMA.. Figure 1: L.A. abrasion testing equipment.
Impact value of an aggregate test gives 'an idea' of toughness of the aggregate to resist fracture under the impact of moving load and BS 812 recommended that the AIV should be less than 30. Figure 5 shows the aggregate impact value for PJW, SA8, SA14, KEP and KLG only showed slight increment of AIV and ranges between 17 to 26 percent ...
Toughness is the property of a material to resist impact. Due to movement of vehicles on the road the aggregates are subjected to impact resulting in their breaking down into smaller pieces. The aggregates should therefore have sufficient toughness to resist their disintegration
Aggregate impact value lab report pdf. Impact, Vsi crusher for Crushing equipment quiz pdf in India Sri Lanka is one of the most aggregate pdf advantages aggregate crushing value test report. Aggregate Impact Value Test Apparatus with Counter is used for against at standard test hammer, and is suitable for specimen of compressive.
Aggregate Impact Value Test Report Discussion . DCC3113 DETERMINATION OF AGGREGATE IMPACT VALUE LAB REPORT DETERMINATION OF AGGREGATE IMOACT VALUE This characteristic is measured by impact value test The aggregate impact value is a measure of resistance to sudden impact or shock which may differ from its resistance to gradually applied ...
From the data obtained and the Aggregate Impact Value Test (AIV) that we have done, it shows that our mean value from all three samples is 24.5%. Based from the Aggregate Impact Standard, for the aggregate impact value of 24.5% which is 20% - 30% is satisfactory strong for road surfacing.
ii) the percentage by weight of the total sample passing through one sieve and retained on the next smaller sieve, to the nearest 0.1 percent. The results of the sieve analysis may be recorded graphically on a semi-log graph with particle size as abscissa (log scale) and the percentage smaller than the specified diameter as ordinate.
Result Introduction measure of degradation of mineral aggregates of standard grading resulting from a combination of action including abrasion and grinding in a rotation steel drum containing a specific number of steel spheres. give a measure of aggregate hardness, as specified
The aggregate crushing value (ACV) of an aggregate is the mass of material, expressed as a percentage of the test sample. which is crushed finer than a 2,36 mm sieve when a sample of aggregate passing the 13,2 mm and retained on the 9,50 mm sieve is subjected to crushing under a gradually applied compressive load of 400 kN. 2 APPARATUS
Dec 15, 2017· The aggregates should therefore have sufficient toughness to resist their disintegration due to impact. This characteristic is measured by impact value test. 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.
Sep 24, 2010· Impact test The aggregate impact test is carried out to evaluate the resistance to impact of aggregates. Aggregates passing 12.5 mm sieve and retained on 10 mm sieve is filled in a cylindrical steel cup of internal dia 10.2 mm and depth 5 cm which is attached to a metal base of impact …
Los Angeles abrasion test on aggregates is the measure of aggregate toughness and abrasion resistance such as crushing, degradation and disintegration. This test is carried out by AASHTO T 96 or ASTM C 131: Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact …
For the majority of aggregates the impact value and the crushing value are similar, but brittle materials such as flints yield impact values which are about 5 units higher than their crushing values. The impact test is widely used as an alternative to the crushing test. Aggregate Abrasion Value Dorry Abrasion Test
The Los Angeles test is a measure of degradation of mineral aggregates of standard gradings resulting from a combination of actions including abrasion or attrition, impact, and grinding in a rotating steel drum containing a specified number of steel spheres. The Los Angeles (L.A.) abrasion test is a common test method used to indicate aggregate toughness and abrasion
LAB REPORT DETERMINATION OF AGGREGATE IMOACT VALUE, This characteristic is measured by impact value test 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, 9 DISCUSSION After 15 blows from the hammer, the crush sample was reduced . Get Info
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.
May 07, 2013· 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: 2386(Part IV)-1963 Methods of test for aggregate for concrete Part IV Mechanical Properties. Equipment & Apparatus Aggregate Impact Test Machine Sieves (12.5mm,10mm) Cylindrical metal measure Tamping Rod …
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.
Apr 10, 2012· Aggregates used in the construction, should be strong enough to resist crushing. If the aggregates are weak, the stability of the structure is likely to be adversely affected. The strength of coarse aggregates is assessed by aggregate crushing test. The aggregate crushing value provides a relative measure of resistance to crushing under gradually applied compressive…
BS 812 part 110 describes a method to determine the aggregate crushing value (ACV) which gives a relative measure of the crushing resistance of aggregate under an increasing compressive load.The method is applicable to aggregates passing a 14.0 mm test sieve and retained on a 10.0 mm test sieve.
Aggregate Crushing Value Test Conclusion Mine . Aggregate impact and crushing test SlideShare 8 Feb 2012 These crushing tests can reveal aggregate properties subject to per cent of the Aggregate Crushing Value and itcan be used for the same purpose DISCUSSIONa Report the geological description of the aggregate the .
aggregate crushing value test report. discussion of determine aggregate crushing value test lab, Los Angeles Degradation Test- discussion of determine aggregate crushing value test lab report,This report is preliminary and has not been reviewed for conformity with US Geological Survey editorial [Online Chat] impact aggregate crushing value - solar-energiedacheu
Jul 14, 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.
Jul 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. Aggregate impact value (%) Toughness Properties <10 Exceptionally tough / Strong 10 – 20 Very tough / Strong […]
Mar 24, 2013· This feature is not available right now. Please try again later.
AGGREGATE IMPACT TEST, TEN PERCENT FINES TEST AND AGGREGATE …. DISCUSSION (a) Report the geological description of the aggregate, …Determination of aggregate impact value, aggregate crushing value and ten percent fines value.. Click & Chat Now
2010222determination of aggregate impact value impact test on aggregates is done to carry out to determine the impact value of the road aggregates assess this characteristic is measured by impact value test the aggregate impact value is a measure of resistance to sudden impact or shock which may differ from its resistance to gradually . Get Price
The aggregate crushing value (ACV) provides relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Two versions available: 150 (standard) and 75 mm dia. The apparatus comprehend cylinder, plunger, base plate, tamping rod and measure.
Exp 4 Aggregate Impact Value. Experiment No. 4: ... Aggregate Impact Value; Test Specifications: Aggregate Impact Value. The test sample shall consist of aggregates the whole of which passes through ½ in B.S. test sieve and is retained on a 3/8 in B.S. test sieve. The aggregate comprising the test sample shall be dried in an oven for a period ...