Concrete Admixtures

Concrete admixtures are natural or Manufactured chemical which are added to the concrete before or during the mix to change its properties with the special requirement. Why do we use Concrete Admixtures? We are using admixtures to change concrete properties in various ways with special requirements like upgrading its workability, enhancing its strength and increasing or decreasing its curing time. It is also used to change cement colour also. Types of Concrete Admixtures Ø   Water Reducing Admixtures Ø   Retarding Admixtures Ø   Accelerating Admixtures Ø   Air entraining concrete admixture Ø   Pozzolanic Admixtures Ø   Damp-proofing Admixtures Ø   Gas forming Admixtures Ø   Air detraining Admixtures Ø   Alkali Aggregate Expansion Inhibiting Admixtures Ø   Anti-washout Admixtures Ø   Grouting Admixtures Ø   Corrosion Inhibiting Admixtures Ø   Bonding Admixtures Ø   Fungicidal, Germicidal, Insecticidal Admixtures Ø   Colouring Admixture