| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide acid-resisting concrete capable of preventing the deterioration even under an acidic atmosphere without needing excess additive water. <P>SOLUTION: A binder comprising cement and granulated blast furnace slag is prepared so that the quantity of the granulated blast furnace slag is 40-70% of the binder by weight and the acid-resisting concrete is made by kneading a mixture of the binder, coarse aggregate and fine aggregate with water into which a water reducing agent in the quantity 0.5-2.5% of the weight of the binder and a highly polymerized melamine-formalin condensate having polymerization degree of 50,000-120,000 in the quantity 0.70-2.0% of the weight of the binder are added. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
