Question

1) WHAT ARE CONCRETE ADMIXTURES? 2) HOW ARE ADMIXTURES CLASSIFIED?,

Answer 1

✓ Concrete admixtures are natural or artificially manufactured chemicals which are added before or during the time of mixing of concrete to change properties.

✓ Admixtures are used to enhance performance of the concrete.

✓strength of concrete gets improved, curing process can be slow down or accelerated as per requirement by adding admixtures to the concrete mix.

✓ Admixtures are classified according to function as follows

1. Air entraining admixtures

2. Retarding admixtures

3. Accelerating admixtures

4. Water reducing admixtures

5. Plasticizers

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