abstract |
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backfill material used for construction of a sewer pipe, a power cable, and the like, or a retaining wall for slope reinforcement. The backfilling material according to the present invention comprises a main material including a calcium aluminate-based or calcium sulfoaluminate-based binding material and a filler bonded by a binder, a fluidizing agent to be mixed with the main material, a plasticizer to be mixed with the main material, And a curing accelerator. |