Determining Uniaxial Compressive Strength and Elastic Modulus of Rock Using Schmidt Hammer (Case Study of Iran and Turkey)

Abstract

Uniaxial compressive strength and elastic modulus are the most important engineering properties of rocks that are widely used in the design of surface and underground projects in rock masses. Using the Schmidt hammer and scleroscope is one of the indirect and non-destructive methods that can be used both in the laboratory and in a field. The Schmidt hammer can be used to determine the compressive strength of rocks. The use of these instruments provides the possibility to achieve uniaxial compressive strength and elastic modulus of the rocks in addition to measuring the recursive hardness of rocks. In this study, the experimental relationships for calculating the compressive strength and elastic modulus of rocks are stated and then a comparison is performed in the results of the Schmidt hammer test which includes the uniaxial compressive strength and elastic modulus with other relationships present in the literature on rocks of Shahrestaneh city in Iran as well as Denizli and Antalya city in Turkey.