The Relationships Among Different Abrasion Tests on Deteriorated and Undeteriorated Rocks

Abstract

In ancient times, the most widely used rocks, especially in construction of roads and monuments, were sedimentary and magmatic rocks. Natural stones used in the buildings and historical monuments are subjected to atmospheric effects such as freeze-thaw, salt crystalisation and wetting and drying cycles which accelerates abrasion. Therefore, wear resistance of natural stone materials is important for selection of suitable materials in engineering projects. In order to investigate the effect of deterioration on abrasion properties of natural rock samples, three different abrasion tests (Bohme abrasion (BA), wide wheel abrasion (WWA) and aggregate impact value (AIV)) were applied to undeteriorated and artificially deteriorated (samples were subjected to accelerated weathering tests (AWT)) natural rock samples in this study. For the first time, the relationship between AIV-WWA and BA-AIV tests was experimentally investigated. Consequently, the relationships among BA-WWA, BA-AIV and AIV-WWA values were examined, the empirical formulas showing these relationships were developed and high correlations (R-2 > 0.80) were obtained. Finally, an abrasion class was proposed using classification of WWA for determining BA and AIV of natural rock samples in this study.