Empirical methods to predict the abrasion resistance of rock aggregates.

Sair Kahraman; Osman Gunaydin

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 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.

FORECASTING; SCIENTIFIC method; DECISION making; FUTURES studies

Bulletin of Engineering Geology & the Environment, 2007, Vol 66, Issue 4, p449

1435-9529

Academic Journal

10.1007/s10064-007-0093-2