Empirical methods to predict the abrasion resistance of rock aggregates

KAHRAMAN S., Gunaydin O.

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, vol.66, no.4, pp.449-455, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 66 Issue: 4
  • Publication Date: 2007
  • Doi Number: 10.1007/s10064-007-0093-2
  • Journal Name: BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.449-455
  • Keywords: Los Angeles test, point load test, Schmidt hammer test, porosity, UNIAXIAL COMPRESSIVE STRENGTH, POINT-LOAD STRENGTH, HAMMER REBOUND DATA, BRITTLE-FRACTURE, DEGRADATION, ROTARY, MODEL
  • Hacettepe University Affiliated: No

Abstract

The possibility of predicting the Los Angeles ( L. A.) abrasion loss from the Schmidt hammer, point load and porosity tests was investigated using 9 igneous, 11 metamorphic and 15 sedimentary rocks with L. A. values ranging from 10 to 76%. Regression analysis indicated a strong correlation (r(2) = 0.72) between L. A. abrasion loss and point load and a good correlation (r(2) = 0.62) between L. A. abrasion loss and Schmidt hammer value. When the samples were divided according to porosity (n < 1% and n > 1%), stronger correlations were obtained, especially for the point load index. The predictions from the Schmidt hammer results were not as good but within acceptable limits.