Chemical Admixtures

Chemical admixtures are the ingredients (components) that are added in concrete other than the primary ingredients, which are portland cement, water, and aggregate that are added to the mix immediately before or during mixing. Concrete production companies use admixtures primarily to reduce the cost of concrete construction; to modify the properties of hardened concrete; to ensure the quality of concrete during mixing, transporting, placing, and curing; and to overcome certain emergencies during concrete operations. The consultant also may require the addition of a specific admixture to impart a certain feature to concrete.

Types of Chemical Admixtures - Civil Engineering Forum
Image of some liquid admixtures