Mechanical Properties of Aggregates:

Apart from the physical properties of aggregates, mechanical properties of aggregates are equally important. They involve crushing strength, toughness, hardness, etc. These properties of aggregates are determined by performing, various tests for aggregate crushing value, ten percent fine value, aggregate abrasion value and aggregate impact value. Out of these, tests for aggregate abrasion value and aggregate impact value (which represents the hardness and toughness of aggregate) are particularly more important for the aggregates used for concrete in wearing surface. A short description of these aggregate properties and the related tests has been discussed in the subsequent paragraphs.