Concrete and Soil Mechanics Laboratory, Chepauk, Madras.
The test procedure for the determination of the dynamic modulus of elasticity of Concrete adopted in the Concrete and Soil Mechanics Laboratory, Madras closely following the tentative A.S.T.M. test procedure No. C. 215-47T, is explained in detail. The effect of different percentages of air entrainment brought about by the admixture of Solid Rihand Air Entraining Agent on the dynamic modulus of elasticity of concrete with maximum sizes of aggregate 1 1/2’’ (38.1 mm) and 3/4’’ (19.05 mm) and water cement ratios 0.5, 0.6, 0.7 for a slump of 3’’ (76.2 mm) has been studied and discussed.
