American Society for Testing and Materials (ASTM). Current edition approved Oct. 1, 2010. Published November 2010. Originally approved in 1961. Last previous edition approved in 2002 as C469 –
02. This test method covers determination of chord modulus of elasticity (Young’s) and Poisson’s ratio of molded concrete cylinders and diamond-drilled concrete cores when under longitudinal compressive stress. Chord modulus of elasticity and Poisson’s ratio are defined in Terminology E6.