Coarse Aggregate

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Coarse Aggregate

Sr. No. Particulars Test Method/ Reference Code Sample size required Significance
1 Sieve Analysis IS 2386 (I):1963 100 kgs. Helps proportioning of ingredients
2 Specific gravity and water absorption IS 2386 (III):1963 100 kgs. Helps classification of materials
3 Bulk density IS 2386 (pt.III ) : 1963 100 kgs. Helps conversion of weight to volume
4 Flakiness Index IS 2386 (pt. I ) : 1963 100 kgs. Flaky aggregate increase specific surface area & W/ C ratio.
5 Elongation Index IS 2386 (pt. I ) : 1963 100 kgs. Higher elongation increases water demand for concrete making it harsh.
6 Crushing Value IS 2386 (pt.IV ) : 1963 100 kgs. Determines resistance of aggregates to gradual Load.
7 Impact Value IS 2386 (pt.IV ) : 1963 100 kgs. Determine resistance to sudden impact or shocks.
8 10 % Fines Value IS 2386 (pt.IV ) : 1963 100 kgs. Indicates resistance to crushing.