Chemical Admixture
Liquid or powder additives used in small dosages (<5% of cement) to modify properties of concrete — workability, setting time, strength gain, or air content.
Categories: plasticizers, superplasticizers, retarders, accelerators, air-entrainers, waterproofers, viscosity modifiers. Conform to IS 9103.
A water-reducing admixture that improves workability without adding water, or reduces water demand by 5-12% for the same workability.
A high-range water reducer that can reduce water demand by 15-30%, allowing very low w/c ratios with high workability.
An admixture that delays the initial setting of concrete. Used in hot weather, long hauls, or large pours to extend the workability window.
An admixture that speeds up setting and early strength gain. Used in cold weather, repair work, or shotcrete.
An admixture that creates microscopic air bubbles in concrete, improving freeze-thaw resistance and workability.