Abstract
A new pure-shearing machine for concrete element is developed in the present study. The machine can subject the pure shearing force to concrete element by changing the direction of uni-axial force. Pure shearing strengths of various concrete were tested and correlations between pure shearing strength and other strengths were investigated in this paper. All specimens were fractured from a cleavage failure induced from the vertical crack due to principal stress. The test results indicated that pure shearing strengths of lightweight concrete were higher than tensile strength from the conventional test, which is different from the tendency of normal concrete.
