Silica fume for highways and civil buildings

This silica fume can be used for building airport runways, road tunnels and road repair based its  early strength, high strength, wear-resistant performance. Chongqing TONE Expressway Company adopt silica fume to repair the road surface, the data of 12 hours pressure strength reach 26Mpa, anti-abrasive increase 1 times, 24 hours pressure strength reach 38Mpa, more than design requirements of C20 concrete.