Estimation of Unconfined Uniaxial Compressive Strength Using Schmidt Hardness and Ultrasonic Pulse Velocity


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Kurtulus C. , SERTÇELİK F. , SERTÇELİK İ.

TEHNICKI VJESNIK-TECHNICAL GAZETTE, vol.25, no.5, pp.1569-1574, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Review
  • Volume: 25 Issue: 5
  • Publication Date: 2018
  • Doi Number: 10.17559/tv-20170217110722
  • Title of Journal : TEHNICKI VJESNIK-TECHNICAL GAZETTE
  • Page Numbers: pp.1569-1574

Abstract

Unconfined Compressive Strength (UCS) of the rocks plays a significant role in geotechnical and rock engineering projects. Due to difficulties UCS estimation is done using indirect methods such as Schmidt Rebound Hammer (RN) and Ultrasonic Pulse Velocity (UPV) tests that are quick and inexpensive tests. This study was performed to provide data consisting of correlations between RN versus UPV and UCS for rock materials. RN and UCS and UPV tests were carried out on 66 rock specimens from 6 different rock samples in the laboratory. Linear models were used for the relations between RN and UCS and UPV because R-2 values of linear model is more suitable than non-linear models. The equations proposed in this study can be used easily for the areas formed of sandstone, limestone, arkoses, and granite to pre-estimate the UCS values of the rocks.