LAUSR

Abstract The Cerchar test method and its index, the so-called Cerchar abrasivity index, are most commonly used to determine the abrasivity of rocks and other geo-materials for construction. Recently, with the aid of a new test device, various abrasive parameters can be obtained from the Cerchar test. In this article, several abrasive parameters such as scratching force, scratching energy and scratching specific energy are determined using a special instrumented West apparatus. Three typical rock materials for construction (granite, sandstone and slate) are selected to study the correlation of Cerchar abrasive parameters with rock intrinsic properties. The research results show that the Cerchar abrasion ratio is a meaningful parameter to quantify not only the rock abrasivity, but also the rock-stylus interaction, as well as the stylus wear and the scratching effectivity.