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

ÖZDOĞAN M. V., DELİORMANLI A. H., YENİCE H.

ARABIAN JOURNAL OF GEOSCIENCES, cilt.11, sa.20, 2018 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 11 Sayı: 20
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1007/s12517-018-3958-8
  • Dergi Adı: ARABIAN JOURNAL OF GEOSCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Cerchar abrasivity index, Porosity, Shore hardness, Uniaxial compressive strength, Regression analysis
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

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 R-2 value increases from 0.843 to 0.946 in multiple regression analysis.