METHOD&APPARATUS FOR MEASURING WORK INDEX

摘要

A method of and apparatus for measuring the energy required to break a sample, e.g. a rock sample, into two or more pieces is disclosed. The method comprises the steps of subjecting the rock sample to one or more impacts until the rock sample breaks and measuring the energy absorbed by the rock sample at each impact, wherein the method further comprises the step of summing said measurements of energy to obtain a measurement of the total energy absorbed by the rock sample.