Concrete admixtures
Concrete admixtures are liquid, powdery or granular substances that are added to the concrete in small quantities during mixing, based on the cement content. They influence the properties of the fresh and/or hardened concrete by chemical and/or physical action.
There 18 different groups/types of action:
Concrete plasticizer - Superplasticizer - Superplasticizer/ Retarder - Air entraining agent - Sealant - Retarder - Hardening accelerator - Setting accelerator - Setting accelerator for shotcrete - Press-in aid - Stabilizer - Sedimentation reducer - Chromate reducer - Foaming agent - Elastic - Expansion aid - Passivator.