| 摘要 |
PURPOSE:To enhance bending strength and impact resistance by uniformly dispersing a large amt. of a reinforcing fiber in a hydraulic inorg. compsn. by adding water to a mixture of a hydraulic inorg. material, an inorg. filler and the reinforcing fiber and adding a water reducing agent to the obtained mixture to mix and knead the same with the mixture. CONSTITUTION:In the production of a hydraulic inorg. compsn., a first process mixing 100 pts.wt. of a hydraulic inorg. material, 10-200 pts.wt. of an inorg. filler and 0.5-20 pts.wt. of a reinforcing fiber, a second process adding 15-30 pts.wt. of water to the obtained mixture to mix the same with the mixture and a third process adding 0.1-5 pts.wt. of a water reducing agent to the resulting mixture to mix and knead the same therewith are provided. As the hydraulic inorg. material, usual Portland cement or alumina cement is used and, as the inorg. filler, a byproduct filler such as silica sand, a quarry powder, silica flour, blast furnace slag or the like is designated and, as the reinforcing fiber, a synthetic fiber composed of vinylon or polyamide or a vegetable staple fiber such as pulp or old paper pulp is used. |
