Mechanical properties of concrete are important factor in the seismic evaluation of the existing reinforced concrete buildings. Maximum strength and Young’s modulus are directly related to the strength and the stiffness of the RC members respectively. Young’s modulus is concerned with the evaluation of the shear strength of the post-installed anchor bolts used in the retrofitting process. In this paper, the mechanical properties of the concrete in the structural member were discussed based on the stress strain curves which were obtained from the compressive tests.
