Cerchar abrasivity index (CAI) and its relation to strength and abrasion test methods for marble stones


CONSTRUCTION AND BUILDING MATERIALS, vol.30, pp.16-21, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 30
  • Publication Date: 2012
  • Doi Number: 10.1016/j.conbuildmat.2011.11.023
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.16-21
  • Keywords: Cerchar abrasivity index (CAI), Uniaxial compressive strength, Direct shear strength, Bohme abrasion value, Wide-Wheel abrasion value, ROCK
  • Dokuz Eylül University Affiliated: Yes


The Cerchar abrasivity index (CAI) is the most widely known test method for identification of rock abrasivity. The CAI value is related directly to cutter life in the field. On account of this, it is significant for building and constructions materials especially for the dimension stones. This paper presents strength tests, which are uniaxial compressive (UCS) and direct shear (DSS) influencing the CAI value. Additionally, the relationship between CAI and abrasion test methods that are Bohme abrasion (BA) and Wide-Wheel (WW) values are investigated. In the study tests were performed on 15 different marbles stone specimens. Results show that a strong correlation exists between CAI value, strength and abrasion test values. Based on this information, two converter charts were developed using multi regression analysis method. (C) 2011 Elsevier Ltd. All rights reserved.