Plasticized Expanding Grout Admixture is free from metallic iron content. The Grout Admixture does not corrode or cause staining and deterioration due to rust expansion in the grout. The Grout Admixture ensures low permeability and long term durability in service due to reduced water/ cement ratio mixes in the grout mix. Plasticized Expanding Grout Admixture attains high early strength in grouts without the use of chlorides.