Journal Published Online: 02 April 2024
Volume 52, Issue 4

Schmidt Rebound Hardness Dependence on the Core-Size: A Correction Model Presented and Tested on Greywacke

CODEN: JTEVAB

Abstract

We determined the effect of the core sample dimensions on the measured values of the Schmidt rebound hardness and proposed a way to correct it to obtain unaffected value. The effect was previously investigated on cubes, where a clear dependence of the rebound hardness on the cube edge was proved. For cylindrical bodies, however, the problem is more complex. In order to determine and verify our model, a set of cylindrical samples was made from greywacke. After applying the correction, an improvement in the mean rebound hardness of the whole set was achieved from 80 to 98.8 % of the unaffected mean rebound value.

Author Information

Brabec, Marek
Institute of Geotechnics, Faculty of Civil Engineering, Brno University of Technology, Brno, Czech Republic
Krmíček, Lukáš
Institute of Geotechnics, Faculty of Civil Engineering, Brno University of Technology, Brno, Czech Republic Department of Geological Sciences, Faculty of Science, Masaryk University, Brno, Czech Republic
Pages: 11
Price: $25.00
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Details
Stock #: JTE20230628
ISSN: 0090-3973
DOI: 10.1520/JTE20230628