Experimental Study of the Mechanical Properties of the Low Elastic Modulus Concrete

By using the 2000kN static and dynamic triaxial test instrument the mechanical properties of the low elastic modulus concrete is studied. The results of the experiment show that the failure modes of the unconfined compression test is crushing-type and the failure modes of the triaxial compression test is shearing-type. Utilizing the Mohr - Coulomb strength theory to design the low elastic modulus concrete cut-off wall is more in line with the actual engineering, but utilizing the first strength theory to design the dam cut-off wall is safer.