kolkata aggregate crushing value test manual

Read More: Aggregate Crushing Value Test – Procedure and Result. Flakiness and Elongation Test Procedure Sample Preparation. IS Sieve. Prepare aggregate sample for the test by sieving between IS sieve 6.3 mm size at the bottom and 63 mm IS sieve at top. Separate sample retains on each sieve.

Manual Aggregate Crushing Value, Thickness: 150mm Digital Mild Steel Needle Flame Test Apparatus, Model Name/Number: RISEC02 Digital Flocculator (Jar Test Apparatus), Packaging Type: Wooden Box, Model Name/Number: Eie - 109

included in this manual:- 1. CBR test. 2. Aggregate crushing value test. 3. Los Angeles abrasion value test of aggregates. 4. Aggregate impact value test. 5. Shape test of aggregates 6. Specific gravity and water absorption test for coarse aggregates. 7. Softening point (Ring and ball test) of bitumen. 8. Penetration value test of bitumen. 9.

This test is repeated once or twice and the average crushing value of the aggregate is determined. The average crushing value in the different tests is the actual crushing value of aggregate. Important points to remember. It is recommended that the crushing value of aggregate should be less than 30%.

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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 ...

100 W2 Where, W1 = Total weight of dry sample. Aggregate crushing value = W1 W2 = Weight of the portion of crushed material passing 2.36mm IS sieve. Results: The mean of the crushing value obtained in the two tests is reported as the aggregate crushing value. Limits: The aggregate crushing value for cement concrete pavement shall not exceed 30%.

The tests on aggregate include the sieve analysis, specific gravity, absorption capacity of fine and coarse aggregate, unit weight and void test as well as Los Angeles abrasion test of aggregates. Concrete cylinder and cube specimens are also used for tests of strength (compression and tension) as well as workability (slump).

Aggregate crushing value test apparatus is used for measuring the resistance of an aggregate to crushing. Made of Mild Steel. Cylindrical Cell, 150mm internal dia x 130 to 140mm height. Plunger, 148mm dia x 100 to 115mm height. Base Plate, 200 to 230mm square x 6mm thickness.

Testing facilities may range from a simple, inexpensive test kit carried in a portable chest to a fully equipped Central Testing Laboratory. A small Field Testing Laboratory, which can perform all the required tests can be set up at any construction site with a small investment of about Rs. 71,300/-.

Aug 30, 2017· Principle of the Test: To produce the abrasive action by use of standard steel balls which when mixed with the aggregate and rotated in a drum for specific number of revolution cause impact on aggregate. The %age wear due to rubbing with steel balls is determined and is known as abrasion value. Prepare the sample by the portion of an aggregate ...

Procedure of Aggregate Crushing Value. Take a sample of aggregates by sieving through 12.5mm and retained on 10mm. The aggregate shall be tested in dry surface conditions. If dried by heating, the period of drying shall not exceed 4 hours and temp shall be 100-110 deg C.

Aggregate testing equipment has varieties of Civil engineering lab equipmentscomprises of Los Angeles Abrasion Machine. Sieve Shakers. Riffle Boxes. Flackiness gauge, Cylindrical Metal Measures, Laboratory Oven. Buoyancy Balance. Aggregate Impact Tester. Deval Attrition Tester. Aggregate Crushing Value Apparatus etc….

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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- gate of 'aggregate crushing value' 30 or higher, the result may be anomalous, and in

May 17, 2019· Aggregate crushing value test appparatus, the thickness of cylinder wall may be 1.6 cm. Fig2. Aggregate crushing value test apparatus components. Procedure The aggregate sample: The material for the standard test consists of aggregates sized 10.0 mm to 12.5 mm. The aggregates must be in a surface dry condition before testing.

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 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 ...

fresh test made. Two tests shall be made. 5.Calculation 1.The ratio of the weight of fines formed to the total sample weight in each test shall he expressed as a percentage, the result being recorded to the first decimal place: Aggregate Impact Value = (B/A) X 100 where A = weight in g of saturated surface - …

Aggregate 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.

Jul 27, 2018· Balance 2. Metal gauge 3. IS Sieves 4. Sample of aggregate (a quantity of aggregate shall be taken sufficient to provide a minimum no of 200 pieces od any fraction to be tested.) 8. Theory The elongation index on an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than 1.8 times their mean dimension.

May 17, 2019 · Concept 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 ...

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Accelerated Polishing Machine (AIM 461). Aggregate Impact Tester with Blow Counter (AIM 456). AIM 211- Hoek Cell for Triaxial testing of Rock samples of Exact (EX Size, AX Size, BX Size, NX Size, 38mm dia). AImil Consistometer (AIM 335) Ref Stds :IS 10510, IS …

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Aggregate 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 ...

Feb 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 ...

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 …

Aggregate Impact Value (AIV);14 Aggregate Crushing Value (ACV);15 b. Specific Gravity of aggregate;16 c. Water Absorption of aggregate;16 d. 17Unit Weight (Lose/Rodded). ii. Chemical test Sodium Sulfate (Na 2 SO 4) Soundness Test.18 Results i. Los angeles (LA) abrasion value The LA test was performed using standard operating procedure of

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