Aggregate Test - National Lab. For Soil Investigation & Building Materials Testing

Product Specification

Product Description

Aggregates are inert granular materials like sand, gravel and crushed stones. The material used for mixing with cement to form a concrete which gives volume, stability, resistance to erosion and other desired physical properties to the finished product, and are tested for strength, hardness, shape, and water absorption. The various testing of aggregates includes the impact value which gives a relative measure of the resistance to sudden impact, while crushing value gives a relative measure of the resistance to crushing under applied load. The specific gravity and water absorption is to determine the density of the essentially solid portion of the aggregate. The LOS Angeles machine is used for testing aggregates for resistance and degradation. The Flakiness index of an aggregate sample is found by separating the flaky particles. The Sieve Analysis helps in determining the size of a granular material like aggregates and also all are required to meet a minimum strength valve, as defined by the 10% value test.