Aggregate impact and crushing test SlideShare Feb 08 2024· 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 AIV is normally about 105 per cent of the Aggregate Crushing Value and itcan be used for the same purpose
Get PriceRecommended Aggregate Impact Test Values Aggregate Impact Value Classification <20% Exceptionally Strong 10 20% Strong 20 30% Satisfactory for road surfacing >35% Weak for road surfacing 50 AGGREGATE CRUSHING VALUE • 2386 PART 4 • Aggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an
Get PriceAGGREGATE CRUSHING VALUE This test helps to determine the aggregate crushing value of coarse aggregates as per IS 2386 Part IV 1963 The apparatus used is … Aggregate properties quality highway maintenance road …
Get PriceResults of the physical properties show the rock has a mean PVU of 4859 m/s a bulk dry specific gravity Gsb of and very low water absorption capacity ranging from % and
Get Pricev The sample is then sieved through a IS Sieve and the fraction passing through the sieve is weighed Weight B vi Two tests should be conducted Results and Calculations Aggregate Crushing Value = B/A X 100 where A = weight of oven dried sample B = weight in g of fraction passing through mm sieve
Get PricePreferably the aggregate crushing value of the coarse aggregate used for cement concrete pavement at surface should not exceed 30 percent For aggregates used for concrete other than for wearing surfaces the aggregates crushing value shall not exceed 45 percent
Get PriceThe aggregate crushing value formula is given below Aggregate crushing value = W3 / W or W3 / W2 W1 W1 = Empty weight of cylindrical Measure W2 = Weight of Aggregate with Cylindrical Measure W = W2 W1 = Weight of Aggregate Sample W3 = Weight of crushed aggregate sample passed through mm IS Sieve FAQs
Get PriceAggregate Impact Value Test as per IS 2386 Part IV 1993 Theory and Scope The property of a material to resist impact is known as toughness Due to movement of vehicles on the road the aggregates are subjected to impact resulting in their breaking down into smaller pieces
Get PriceAggregate crushing value = W2 x 100 / W1 W W2 =Weight of fraction passing through the appropriate sieve W1 W =Weight of surface dry sample The mean of two result to nearest whole number is the aggregate crushing value Result The aggregate crushing value of the given sample= Aggregate Crushing Values for Roads and Pavement Construction
Get PriceSigma test lab offer testing services like Aggregate Test Chloride Content test Fraction test Crushing Value test Drying Shrinkage test Flakiness and aggregate crushing value result interpretation Know More
Get PriceCALCULATION • Aggregate crushing value = B/A x 100% • The result should be recorded to the first decimal place and the mean of the two results reported • To achieve a high quality of pavement aggregate possessing low crushing value should be preferred 8
Get PriceThe aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing apply a gradually increasing compressive load The strength of aggregate is calculated by the crushing value test The aggregates used should be strong enough to with stand the stresses which comes on to it Aggregate are the important part of
Get Pricethe aggregate crushing value ACV which gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load The method is applicable to aggregates passing a mm test sieve and retained on a mm test sieve For other size fractions there is another recommended method
Get PriceWhat is the crushing value of aggregates firstalertin may 27 2024 the crushing value of an aggregate indicates its resistance against crushing under gradually applied compressive loads the standard aggregate crushing test is made on aggregate passing IS sieve and retained on mm IS sieve procedure about Kg material consisting of aggregates passing IS sieve and retained on sieve is
Get PriceThe apparatus of the aggregate crushing value test as per IS 2386 Part IV 1963 consists of 1 A 15cm diameter open ended steel cylinder with plunger and base plate of the general form and dimensions as shown in Fig 1 2 A straight metal tamping rod of circular cross section 16mm diameter and 45 to 60
Get PriceOBSERVATION AND CALCULATION Aggregate crushing value PARTICULARS TRIAL1 Weight of dry sample passing through IS sieve and retained on 10mm IS sieve A Weight of aggregate passing through IS sieve after test B Aggregate crushing value B/A x 100 TRIAL2 MEAN fThe ratio of the weight of fines formed to the total sample weight
Get PriceThe strength of coarse aggregates is assessed by aggregates crushing test The aggregate crushing value provides a relative measure of resistance to
Get PriceThe Aggregate Crushing Value ACV Set Dia 75 mm provides a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load Used for the mm particle sizes aggregates AG1120 set consists of steel cylinder plunger base plate cylindrical measure and tamping rod
Get Price6 Impact 10% Fines Crushing Tests If the percentage fines exceeds 30 the result may be anomalous as the broken pieces of aggregate will tend to fill the voids and prevent further crushing In this case the Ten Percent Fines Test Aggregate Crushing Value Test Determine Aggregate
Get PriceAggregate Impact Value = W B W A ×100 W B W A × 100 Where W A is Weight of oven dried sample W B is Weight of fraction passing through mm IS Sieve Reporting of Results The mean of the two results shall be reported to the nearest whole number as the aggregate impact value of the tested material Specifications Aggregate Impact Values
Get PriceIS 2386 4 1963 Methods of test for aggregates for 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
Get PriceMeaning Of Aggregate Crushing Value Aggregate Crushing Value Interpretation Aggregate crushing value acv aggregate impact value aiv and 10 percent fines ag gregate crushing test 10 fact with quantitative analysis mineral grain size and mineral grain size distribution it is possible to determine the mineral get price
Get PriceProcedure for crushing strength of aggregate Before testing the aggregate should be in surface dry can achieve the dry condition of aggregate by placing aggregates in an oven for 4 hours at 100 degree Celcius The aggregates passing through and retained on 10mm IS sieves are selected for finding aggregate crushing strength
Get PriceAggregate Crushing Value engineeringcivil AGGREGATE CRUSHING VALUE This test helps to determine the aggregate crushing value of coarse aggregates as per IS 2386 Part IV 1963 The apparatus used is Cylindrical measure and plunger Compression testing machine IS Sieves of sizes 10mm and
Get PriceThis test gives the Aggregate Impact Value AIV which is an index of the resistance of aggregate to sudden shock or impact The apparatus used for this test is called Impact Testing Machine A sample of aggregates in surface dry condition which pass through mm sieve and are retained on 10 mm sieve are taken for this test W1
Get PriceApr 10 2024 0183 32 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
Get PriceChoose the abrasive charge as per Table 2 depending on grading of aggregates Place the aggregates and abrasive charge on the cylinder and fix the cover Rotate the machine at a speed of 30 to 33 revolutions per minute The number of revolutions is 500 for gradings A B C D and 1000 for gradings E F G
Get PriceObjective For determination of the aggregate crushing value of coarse aggregate which passes mm IS sieve and retained on 10 mm IS sieve Reference Standard IS 2386 Part IV 1963 Methods of test for aggregate for concrete Part IV Mechanical Properties Equipment Apparatus Steel Cylinder Sieves 10mm Cylindrical metal measure Tamping Rod Balance 0 10kg […]
Get PriceExperimental Study of Concrete When Aggregate is replaced Know More Mix design of M40 has been done as per IS 10262 2024 IV EXPERIMENTAL PROGRAM To determine the property of the material along with their Aggregate Crushing Value Natural Coarse Aggregate 1522 Recycle Aggregate 2246 Table 1 Aggregate Crushing Value B Impact Test Impact test is the good indicator of strength and
Get PriceThe aggregate crushing value test ACV BS 812 Part 110 is one of the test methods for determining the crushing resistance of the aggregates Alvarado et al and Reyes et al concluded that the ACV test was practical reproducible and stable and is a pivotal method in the evaluation of aggregate crushing resistance
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