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The correlations between the Cerchar abrasivity index and the geomechanical properties of building stones

  • Mehmet Volkan Ozdogan
  • Ahmet Hamdi Deliormanli
  • Hayati Yenice
Original Paper
  • 71 Downloads

Abstract

Cerchar abrasion index (CAI) value is one of the most important test parameters for determining the abrasion value of a cutter or drilling bit. This study aims to present the relation between CAI and various geomechanical properties of building stones. Herein, single and multiple regression analyses were performed to determine the best measure of the relation between CAI and three geomechanical properties. The CAI value is strongly related to the Shore hardness. However, the correlation coefficient increases when we jointly consider the Shore hardness, porosity, and uniaxial compression strength of rock. On the contrary, the analyses results show that the significance level of the CAI value is lower when the CAI value is less than 1. The correlation between CAI and Shore hardness is higher when the CAI values greater than 1 are considered. Also, the R2 value increases from 0.843 to 0.946 in multiple regression analysis.

Keywords

Cerchar abrasivity index Porosity Shore hardness Uniaxial compressive strength Regression analysis 

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Copyright information

© Saudi Society for Geosciences 2018

Authors and Affiliations

  • Mehmet Volkan Ozdogan
    • 1
  • Ahmet Hamdi Deliormanli
    • 1
  • Hayati Yenice
    • 1
  1. 1.Department of Mining EngineeringDokuz Eylul UniversityIzmirTurkey

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