Predicting uniaxial compressive strength,modulus of elasticity and index properties of rocks using the Schmidt hammer |
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Authors: | Saffet Yagiz |
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Affiliation: | (1) Geological Engineering Department, Engineering Faculty, Pamukkale University, 20020 Denizli, Turkey |
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Abstract: | The Schmidt hammer test is a non-destructive method which can be used in both laboratory and field to provide a quick and
relatively inexpensive measure of rock hardness. The study investigated the relationship between the Schmidt hardness and
modulus of elasticity, uniaxial compressive strength and index properties of nine types of rock including travertine, limestone,
dolomitic limestone and schist. The empirical equations developed indicated the Schmidt hardness rebound values have a reliable
relationship with the uniaxial compressive strength of rock (r = 0.92). Comparing the results with those reported by other researchers, it is concluded that no single relationship can
be considered reliable for all rock types. Whilst the equations developed in this study may be useful at a preliminary stage
of design, they should be used with caution and only for the specified rock types.
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Keywords: | Index properties Modulus of elasticity Schmidt hardness Uniaxial compressive strength |
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