Perma Grout is a fine cementitious powder which forms a neat slurry when mixed with water. This slurry is used for injection grouting to arrest leakages. If concrete is porous or honeycombed, the cement slurry which is used for injection grouting partly blocks the voids and capillaries. Perma Grout is a specialized cementitious powder which is designed for effective injection grouting of R.C.C. structures to arrest leakages.