Effect of rate of loading on compressive strength of concrete

Paper Topic :

Concrete Engineering

Author Name :

Saurabh Mali

Abstract :

To accurately predict the behavior of a reinforced concrete structure subjected to dynamic loads, effect of change in rate of loading should be accurately determined. It’s found that load rate as per IS specifications is time consuming and tedious and hence generally avoided. Hence, concrete of grade varying from M20 to M40 using loading rates 40 to 1540 kg/cm2/min were tested for above purpose. The ratio of strength to rate of loading was calculated which revealed logarithmic relationships. Suitable correction factor was proposed for determining the true strength of concrete cubes from obtained strength at higher rate of loading.

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