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
Read More2022-2-9 · The 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. Now fill the aggregate in the mould along with the plunger on top.
Read More2017-5-29 · aggregate to crushing under a gradually applied compressive load. Crushing value is a measure of the strength of the aggregate. The aggregates should therefore have minimum crushing value. 3. APPARATUS The apparatus of the aggregate crushing value test as per IS: 2386 (Part IV) – 1963 consists of:
Read More2022-2-11 · The crushed aggregate sample which is finer than 2.36 mm is separated and expressed as a percentage of the original weight taken in the mold.The percentage of weight passed through the 2.36m IS sieve is known as the Aggregate crushing value.. In situations, when the aggregate value is 30 or higher the result may be a mistake and in such cases, the “ten
Read MoreAs Per IS 2386 (P-IV) The selection of proper aggregate for a given application is essential to attain the desired quality. Various characteristics are required to be determined for the selection of appropriate aggregate from the wide range available. Aggregate crushing value test apparatus is used for measuring resistance of an aggregate to ...
Read More2019-5-17 · 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
Read MoreAggregate 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.
Read More2019-3-11 · AGGREGATE CRUSHING VALUE 1.Objective The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. With aggregate of aggregate crushing value 30 or higher, the result may be anomalous, and in such cases the ten percent fines value should be determined instead.
Read More2018-2-1 · gate of ‘aggregate crushing value’ 30 or higher, the result may be anomalous, and in such cases the ‘ten percent fines value’ should be determined instead. NOTE 2 - The standard aggregate crushing test shall be made on aggre a 12.5
Read More2018-2-1 · 2.1.2 Crushed Stone Sand - Fine aggregate produced by crushing hard stone. 2.1.3 Crushed Grace1 Sand - line aggregate produced by crushing natural gravel. . 2.2 Coarse Aggregate -- Aggregate most of which is retained on 4*75-mm IS Sieve and containing only so much finer material as is permitted for
Read More2021-12-23 · 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 2.1 An ...
Read MoreAs Per IS 2386 (P-IV) The selection of proper aggregate for a given application is essential to attain the desired quality. Various characteristics are required to be determined for the selection of appropriate aggregate from the wide range available. Aggregate crushing value test apparatus is used for measuring resistance of an aggregate to ...
Read MoreThe aggregate crushing value for the surface course should be within 30% and for the base course, it should not exceed 45%. In a question asked about aggregate crushing value for cement concrete pavement but is not mention about surface or base course, so we assume it is asked about the base course as per given option. Important Points
Read MoreAggregate Crushing Value Apparatus. As per IS:2386 (P-IV), IS:9376 for measuring resistance of aggregate to crushing, it consists of : 1 No. Cylindrical Container 150mm I.D. x 130mm to 140mm ht. with base plate & plunger. 1 No. Tamping Rod 16mm dia. x 600mm long. 1 No. Metal Measure 115mm dia. x 180mm ht. Category: Aggregate. More Information.
Read More2019-8-27 · The aggregate crushing value is a numerical index of the resistance of an aggregate to crushing under a gradually applied compressive load. It is expressed as the percentage by mass of the crushed (or finer) material obtained when the test sample is subjected to a specified load under standard conditions. Aggregates with lower crushing value ...
Read MoreAggregate Crushing Value = W B W A × 100. Where, W A is weight of surface-dry sample; W B is weight of fraction passing the appropriate sieve; Reporting of Results. The mean of the two results shall be reported to the nearest whole
Read More2020-3-30 · The aggregate crushing value test is an important test of aggregates. It gives a numerical index of the strength of the aggregate and it is used for concrete in construction of roads and pavements. The aggregates, have minimum crushing value, are recommended for roads and pavements as it indicates a lower crushed fraction under load and would ...
Read More2021-7-18 · Aggregate crushing value = = (Weight of fraction passing through the 2.36 mm sieve) / (Weight of surface dry sample) = (W 2 x 100) / (W 1-W) Where W is the weight of empty cylinder. Result. The mean of the two results shall be reported to the nearest whole number as the “aggregate crushing value” of the size of the material tested.
Read More2019-9-3 · 3 Aggregate crushing value/Ten Percent Fines Value (Clause 5.4.1) - Steel cylinder [As per clause 2.2.(a) and Fig 1 of IS 2386(Part 1) : 1963] - Metal tamping rod - Weighing balance - IS sieves -12.5 mm, 10 mm & 2.36 mm - Compression testing machine - Cylindrical metal measures of 15.0 cm and 7.5 cm dia. - Oven
Read MoreCrushing Value Test Procedure. Select clean and dry aggregate passing through 12.5 mm and retained on 10.0 mm sieve. Weight the empty cylindrical measure. Let the weight be ‘a’ grams. Fill the aggregate in the cylindrical measure in three layers, tamping each layer 25 times with the rounded end of the tamping rod.
Read MoreThe aggregate crushing value for the surface course should be within 30% and for the base course, it should not exceed 45%. In a question asked about aggregate crushing value for cement concrete pavement but is not mention about surface or base course, so we assume it is asked about the base course as per given option. Important Points
Read MoreAggregate Crushing Value Apparatus. As per IS:2386 (P-IV), IS:9376 for measuring resistance of aggregate to crushing, it consists of : 1 No. Cylindrical Container 150mm I.D. x 130mm to 140mm ht. with base plate & plunger. 1 No. Tamping Rod 16mm dia. x 600mm long. 1 No. Metal Measure 115mm dia. x 180mm ht. Category: Aggregate. More Information.
Read MoreAGGREGATE CRUSHING VALUE TEST OBJECTIVE. TO DETERMINE THE CRUSHING VALUE OF AGGREGATE. APPARATUS REQUIRED. As per IS 2386 part –IV: 1. Steel cylinder with open ends and internal diameter 152 mm, square base plate, plunger with piston of diameter of 150mm 2. Cylindrical measure having internal diameter of 115mm and height 180mm
Read More2021-7-12 · The crushing strength or aggregate crushing value of a given road aggregate is found out as per IS-2386 Part- 4. The aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied
Read MoreExplain aggregate crushing value. How would you express? Briefly explain the aggregate crushing value test procedure. What is the specified standard size of aggregates? How is the aggregate crushing value of non-standard size aggregate evaluated ? Aggregate crushing value of material A is 40 and that of B is 25. Which one is better ~nd why?
Read More2021-5-20 · Aggregate Crushing Value Test This format is useful for doing crushing value test as per IS 2386 part 4. It is important test for aggregates, format is attached herewith.
Read More2021-7-18 · Aggregate crushing value = = (Weight of fraction passing through the 2.36 mm sieve) / (Weight of surface dry sample) = (W 2 x 100) / (W 1-W) Where W is the weight of empty cylinder. Result. The mean of the two results shall be reported to the nearest whole number as the “aggregate crushing value” of the size of the material tested.
Read More2019-8-29 · The apparatus as per IS 2386 (Part-IV) 1993 consist of,. Impact Testing Machine : A testing machine weighing 45 to 60 Kg and having a metal base with a heavy lower surface of not less than 30 centimetre in diameter. It is supported on plane and level concrete floor of minimum 45 cm thickness. The machine should have provision for fixing its base.
Read MoreCrushing Value Test Procedure. Select clean and dry aggregate passing through 12.5 mm and retained on 10.0 mm sieve. Weight the empty cylindrical measure. Let the weight be ‘a’ grams. Fill the aggregate in the cylindrical measure in three layers, tamping each layer 25 times with the rounded end of the tamping rod.
Read More2018-3-15 · AGGREGATE:- Type of Aggregate . FINE AGGREGATE - Aggregate most of which pass 4.75mm IS sieve and contains only so much coarser material as permitted.; Natural Sand - Fine aggregate resulting from the natural disintegration of rock and which has been deposited by streams or glacial agencies.; Crushed Stone Sand - Fine aggregate produced by crushing
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