| 摘要 |
An asbestos-free extruded concrete panel and a manufacturing method thereof are provided to improve the dimensional stability of the concrete panel and to reinforce tensile strength by using pulp fiber and chemical fiber instead of the existing asbestos. An asbestos-free extruded concrete panel is produced by extruding and molding the mixture(S50). The mixture consists of cement of 20~50wt.%, silica stone powder of 25~40wt.%, cellulose of 2~8wt.%, and silica fume of 1~8wt.%. Sand of 0.1~18wt.%, a plasticizer of 0.5~1.5wt.%, chemical fiber of 0.1~3wt.%, wollastonite of 3~16wt.%, and water of 20~40wt.% are added to the mixture. The chemical fiber is one selected from PP(Polypropylene), vinylon, and vinyl alcohol with heat resistance that are not melted at more than 140 deg.C. |
