What are the Aggregates??
- Aggregate the raw material produced from natural rocks which solid, has good strength and can used widely in construction with some other ingredients.
- Aggregate is combined with cement, sand and water to form the concrete. Aggregates gives strength and rigidity to concrete.
- Aggregates gives volume, strength, stability, resistance to wear, resistance to impact and other physical properties to finished product.
- Aggregates is also used in road construction, rail way construction, bridges, highways, and many other constructions
Why aggregates are important in concrete?
- Aggregates in construction are highly versatile materials which used widely in different kinds of the projects. It is widely used in non-reinforced works, retaining walls, foundation works, RCC etc.
- Aggregates in concrete also contributes to 60-80% volume of concrete. which is very huge. It gives bulking and mechanical strength to concrete and And it also decreases the cement and water consumption in concrete.
- Aggregates in concrete makes the concrete hard, durable and compact.
- Aggregates also important ingredient of concrete which induces mechanical strength to concrete.
- Aggregates gives volume, strength, stability, resistance to wear, resistance to impact and other physical properties to finished product.
IS CODES for aggregates:
| IS Codes | Detailed Name |
| IS: 383 | Specifications for fine and coarse aggregate from natural sources for concrete. |
| IS: 2386 ((Part I) | Methods of test for aggregate for concrete particle size and shape |
| IS 2386 (Part II) 1963 | Methods of test for aggregate for concrete estimation of deleterious materials and organic impurities. |
| IS 2386 (Part III) 1963 | Methods of test for aggregate for specific gravity, density, voids, absorption and bulking |
| IS 2386 (Part IV) 1963 | Methods of test for aggregate for Mechanical properties. |
| IS 2386 (Part V) 1963 | Methods of test for aggregate Soundness |
| IS 2386 (Part VI) 1963 | Methods of test for aggregate measuring mortar making properties of fine aggregates. |
| IS 2386 (Part VII) 1963 | Methods of test for aggregate for alkali-aggregate reactivity |
| IS 2386 (Part VIII) 1963 | Methods of test for aggregate for petrographic examination |