Feb 08, 2012· AGGREGATE IMPACT TEST TABLE 12.1 Maximom Allowable Impact Value of Aggregate in Different Types of Pavement Material/Layers Aggregate impact value, maximum, % Water bound macadam (WBM). sub-base course Cement concrete, base course (as per 151) (i) WBM base course with bitumen surfacing (ij) Built-up spray grout, base course Bituminous macadam ...

Get PriceAggregate abrasion value (AAV) – This test sorts out aggregates which might be strong but are not resistant to the abrasive action of vehicle tyres if used in the surface course of roads, i.e., though suitable in every other respect, they wear-out too quickly in use.

Get PriceAggregate 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 of four hours at a temperature of 100-110 °C and ...

Get PriceConcept and significance of the Aggregate crushing value test. The ‘ aggregate crushing value test ` gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Aggregate crushing value is defined as the percentage by weight of the crushed (or finer) material obtained when the test aggregates are subjected to a specified load under ...

Get PriceAggregate Impact Value (AIV) Test for Aggregates . The aggregate impact value is expressed as the percentage of the fines formed w r t the total weight of the sample Aggregate Impact Value (AIV) = (100*M2)/M1 Where: M1 =Mass of the test specimen M2 = Mass of the test specimen passing 2 36 mm test sieve. Get More

Get PriceThe 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.

Get PriceAggregate Crushing Plant. Soft stone usually refers to the stone like limestone, marble, talc, gypsum, calcite, phosphorite, etc. The classic production line for the soft stone is JAW CRUSHER (primary crusher) + IMPACT CRUSHER (secondary crusher), and with the auxiliaries of vibrating feeder, vibrating screen & belt conveyors.

Get PriceJul 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 […]

Get PriceMar 24, 2013· How to determine Aggregate Crushing Value || Aggregate Crushing Strength || Aggregate Test #1 - Duration: 4:11. Anime_Edu - Civil Engineering Videos 20,648 views

Get PriceAs per the definition given in the ‘IS: 2386 (Part III) – 1963’, (Indian Standard- Methods of Test for Aggregates for Concrete – Specific Gravity, Density, Voids, Absorption and Bulking), the specific gravity of coarse aggregates is the weight of the aggregates dried to constant weight in an oven at 100°C divided by its absolute volume including the natural voids within the aggregate ...

Get PriceWhat Is Aggregate Impact Value Machine And The. Aggregate impact value civil engineering 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 …

Get Priceaggregate impact value definition Construction Waste Crusher Construction waste refers to the construction, construction units or individuals to construct, lay or demolish all kinds of buildings, structures and pipe networks, etc., and generate the spoil, spoil, waste, residual mud and other wastes generated during the repairing process.

Get PriceAGGREGATE IMPACT VALUE This test is done to determine the aggregate impact value of coarse aggregates as per IS: 2386 (Part IV) – 1963. AGGREGATE IMPACT VALUE TEST | CIVIL QUALITY CONTROL LAB Toughness is the property of a material to resist impact.

Get PriceThis 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. 3. APPARATUS The apparatus of the aggregate impact value test …

Get PriceDETERMINATION OF AGGREGATE CRUSHING VALUE 2.1 Object - This method of test covers the procedure for determining aggregate crushing value of coarse aggregate. NOTE 1 -The ‘aggregate crushing value’ gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. With aggre-

Get PriceImpact Value. This test is used to determine an aggregate’s resistance to impact, usually to assess its suitability for inclusion in concrete. A sample of single sized aggregate of known mass is subjected to repeated standard impact blows.

Get PriceAggregate impact value test - SlideShare. Jun 14, 2012· Aggregate impact value test 1 Aggregate Impact Value TestAim: To conduct a test to determine aggregate impact value of coarseaggregateNote: Aggregate Impact Value gives a relative measure of the resistanceof an aggregate to a sudden shock or impact which differs fromcrushing strengthIS: 2386 Part IVApparatus:Impact Testing …

Get PriceProcedure for crushing strength of aggregate. Before testing, the aggregate should be in surface dry condition.You can achieve the dry condition of aggregate by placing aggregates in an oven for 4 hours at 100-degree Celcius. The aggregates passing through 12.5mm and retained on 10mm IS sieves are selected for finding aggregate crushing strength.

Get PriceThe result of asphalt stripping value of the aggregate test is obtained by visuals. You need to find out the percentage of the surface of stone that remains coated after the desired period. ← Specific Gravity of Bitumen-Definition, Test and Procedure Steps for the Determination

Get PriceJan 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.

Get PriceSep 12, 2015· Aggregate impact value = (W1/W2)*100. Aggregates to be used for wearing course, the impact value shouldn’t exceed 30 percent. For bituminous macadam the maximum permissible value is 35 percent. For Water bound macadam base courses the maximum permissible value defined by IRC is 40 percent. Also read: Impact Value Test Procedure of Aggregates. 4.

Get PriceAGGREGATE ABRASION VALUE This test helps to determine the abrasion value of coarse aggregates as per IS: 2386 (Part IV) – 1963. The apparatus used in this test are Los Angles abrasion testing machine, IS Sieve of size – 1.7mm, Abrasive charge – 12 nos. cast iron or steel spheres approximately 48mm dia. and each weighing between 390 and 445g ensuring that the total weight of charge is ...

Get PriceAggregate Impact Value - Civil Engineering. AGGREGATE IMPACT VALUE This test is done to determine the aggregate impact value of coarse aggregates as per IS: 2386 (Part IV) – 1963.

Get PriceIn order to evaluate the resistance to impact of aggregate, the aggregate impact test is conducted. Aggregate impact value gives the idea about how much impact load can be resisted by aggregate. Actually, aggregate should be sufficiently tough to resist their disintegration due to impact. This distinctive property is measured by impact value test.

Get PriceThe 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. Procedure of Aggregate Impact Test

Get PriceThe Aggregate Impact Value Testing Apparatus 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. The number of blows delivered to the sample is automatically documented by the counter that is fitted to the machine.

Get PriceDetermination of Aggregate Impact Value CivilArc. Jan 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 100 mm 125 mm Aggregates can be dehydrated by warming them at temperatue of …

Get Price5.16 The Heavy Impact Value has application to testing the same materials as those tested by the standard, light, medium, and heavy medium heavy impact soil testers, but the greater mass of this impact soil tester provides less sensitivity of the output so is applicable for harder materials at the top end the scales or beyond the ranges of the lighter impact soil testers.

Get PriceAggregate Crushing Value Significance. The ‘ aggregate crushing value test gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load Aggregate crushing value is defined as the percentage by weight of the crushed or finer material obtained when the test aggregates are subjected to a specified load under standardized conditions and the ...

Get Pricesuitable mass of material to determine the Aggregate Crushing Value. Grade of the aggregate Minimum mass of test portion All-in aggregate 40 mm max. size All-in aggregate 20 mm max. size Graded aggregate 40 to 5 mm Graded aggregate 20 to 5 mm Graded aggregate 14 to 5 mm 60 kg 45 kg 40 kg 25 kg 15 kg 7.7.1.7 Procedure

Get Priceaggregate tests Specific tests used to determine the suitability of aggregates for special purposes. There are tests for: (a) shape and texture (the angularity number), to determine whether particles have a large angle of friction with good bonding properties; (b) size and grading, to determine whether particles will pack well; (c) moisture content, to discover whether materials absorb so much ...

Get PriceAggregate Impact Value (AIV) Testing Apparatus Cooper . 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.

Get PriceTherefore, aggregate used for such propose should have sufficient toughness to resist their disintegration due to the impact. This important property of aggregate is determined by the impact value test. This resistance of aggregate may differ from resistance to gradual load which we measure in the crushing value test. Importance Impact Value Test:

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