| 摘要 |
<p>PURPOSE:To produce a fiber reinforced cement building material suppressed in a shrinkage of a base material itself of a fiber reinforced cement product, whose shrinkage during curing reaction or after curing can not be evaded heretofore, and capable of stabilizing dimension without needing an additional means. CONSTITUTION:Calcium oxide, magnesium oxide or their mixture having <=0.3mm grain size is added to 100 pts.wt. fiber reinforced cement building material consisting of cement, slag, a calcareous material, a siliceous material, a weight lighting material, a reinforcing fiber such as pulp and a dry scrap by the amount of 0.5-5 pts.wt., and mixed with a prescribed amount of water to be agitated, formed in a product shape by ordinary method, and then cured by a normal temp. curing or a steam curing.</p> |
