The effect of textural parameters of grains on the LCPC abrasivity of coarse-grained igneous rocks

In this study, the effects of textural properties of grains such as aspect ratio, roundness, and diameter on the LCPC abrasivity coefficient (LAC) were investigated for six different coarse-grained igneous rocks. The LAC was correlated to the abrasive mineral contents (AMC) and a good correlation was found between the two parameters. Then, the LAC was correlated to the AMC multiplied by the textural properties of grains, respectively. Compared to the correlation coefficient of the relation between the LAC and the AMC, correlation coefficient was increased by including the textural properties of grains to the correlation. A combined parameter called shape and size coefficient (SSC) was also defined. The correlation coefficient of the relation between the LAC and the AMC multiplied by the SSC is fairly higher than that of the previous correlations derived. Concluding remark is that the textural properties of loosened materials have a strong influence on tool wear.