What are the various types of admixtures?

Question

Accepted Answer

Admixtures are substances added to concrete to enhance its properties. They can be classified into different types.

Water-reducing admixtures: reduce the amount of water needed for a given concrete mix
Retarding admixtures: delay the setting time of concrete
Accelerating admixtures: speed up the setting time of concrete
Air-entraining admixtures: introduce tiny air bubbles to improve workability and durability
Superplasticizers: improve the flowability of concrete without increasing water content
Pozzolanic admixtures: enhance the strength and durability of concrete by reacting with calcium hydroxide
Corrosion-inhibiting admixtures: protect reinforcing steel from corrosion
Coloring admixtures: add color to concrete for decorative purposes

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