Patent ID: 8333837

Claim:
A concrete repair composition comprising: (a) 30 to 40 parts by weight of Ordinary Portland Cement Type 1; (b) 2 to 6 parts by weight of Calcium Aluminate Cement; (c) 2 to 5 parts by weight of Alumina Cement; (d) 2 to 5 parts by weight of calcium sulfonate; (e) 5 to 10 parts by weight of silica sand having an average particle size of 0.1 to 0.2 mm; (f) 25 to 35 parts by weight of silica sand having an average particle size of 0.3 to 0.6 mm; (g) 16 to 20 parts by weight of silica sand having an average particle size of 0.7 to 1.2 mm; (h) 5 to 10 parts by weight of pozzolan powder; (i) 0.4 to 0.8 parts by weight of alkylalkoxysilane; and (j) 0.1 to 0.3 parts by weight of jute fiber having an average thickness of 65 to 75 μm and an average length of 3 to 6 mm.