COMPRESSIVE STRENGTH TEST OF CONCRETE (IS:516-1959)

Compressive Strength Test on Concrete

Objective The tests are required to determine the strength of concrete and therefore its suitability for the job.  Reference Standards IS : 516-1959 – Methods of tests for strength of concrete. Equipment & Apparatus Compression testing machine (2000 KN) Curing tank/Accelerated curing tank Balance (0-10 Kg)   Procedure  Representative samples of concrete shall be taken and … Read more

AGGREGATE FLAKINESS INDEX VALUE (IS:2386-Part 1-1963)

Thickness Gauge

Objective For determination of flakiness index of coarse aggregate, where the  size of the coarse aggregate are larger than 6.3mm .  Reference Standards IS : 2386 (Part I) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape. Equipment & Apparatus Thickness gauge Sieves [63, 50, 40, 31.5, 25, … Read more

SOUNDNESS OF CEMENT BY LE-CHATELIERS METHOD (IS:4031-Part 3-1988)

Le chatelier Apparatus

Overview In the soundness test a specimen of hardened cement paste is boiled for a fixed time so that any tendency to expand is speeded up and can be detected. Soundness means the ability to resist volume expansion. Apparatus Measuring Instruments NAME CAPACITY / RANGE / SIZE ACCURACY / LEAST COUNT Le-chatelier apparatus  Should be made … Read more