Admixture is defined as a material other than cement, aggregate and water used as an ingredient of concrete, added to the batch immediately before or during mixing, to modify the properties of ordinary concrete to make it ore suitable for required situation.
Instead of using a special cement, properties of cement can be changed by addictives to cement.
Following types of admixtures are generally used in construction
- Water reducing agent (plastic users)
- Super plastisizer
- Air en training agents
- Water proofing agents
- Gas forming agents
- Grouting admixtures
- Corrosion inhibitors
- Bonding admixtures
- Fungicidal, germicidal, insecticidal admixtures
- Colouring admixtures
- Pumping aids
- Pozzolanic or mineral admixtures
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