A proposed improvement to the crushing test of concrete specimens

摘要

A method is proposed to determine from any compression test on a concrete specimen the strength that the specimen would have had if it had been tested in a 'perfect machine capable of uniformly straining the specimen. The method requires the measurement of strains in the specimen and total load on it during the test. A parabolic curve is assumed to represent the stress - strain behaviour of the concrete when uniformly strained, and the form of the parabola is fixed from the strain and load measurements.