Specific energy and the modified rubber wheel abrasion test

This paper develops a means to predict the wear performance of shovel tips based on field data through the use of specific energy (Es), which is defined as the friction energy required to cause a unit volume loss of material (Nm/m3). A modified rubber wheel abrasion test (similar to ASTM-G65) is presented for the determination of Es. Results show that it is possible to predict the performance of shovel tips. It is also found that Es provides an index to quantify the resistance of wear materials to abrasion under specific abrasive conditions.