Q. What is the difference between the abrasion and micro-deval test?

The abrasion test involves bigger dry examples and rough accuses in a drum of a rack. The rack lifts and drops the example and rough charge across the range of the drum bringing about an extremely high effect on the total particles. Loss from this test is an aftereffect of breaking and dry crushing the particles. The Micro-Deval test involves a type of wet crushing of more modest examples in a smooth drum and misfortune is an element of wear and whittling down.