| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an acid resistant hydraulic solidifying material for a hardened body reducing equipment cost and raw material cost, to provide a method for producing the same, and to provide acid resistant concrete, iron corrosion-inhibited concrete and reinforcement corrosion-inhibited concrete obtained by using the same. <P>SOLUTION: Caustic soda aqueous solution and silica-containing inorganic powder are blended, so as to be a composition comprising, by weight, a 20 to 40% Na<SB>2</SB>O component, a 30 to 65% SiO<SB>2</SB>component and a 10 to 25% H<SB>2</SB>O component, and in which the molar ratio between the SiO<SB>2</SB>component and the Na<SB>2</SB>O component is controlled to 0.9 to 3.15, and they are mixed, so as to be slurry, and thereafter, the slurry is dewatered or dried, so as to be the raw material for a solidifying material. Further, the raw material for a solidifying material is cured under pressurized steam heated at 130 to 190°C for a prescribed time, and is subsequently pulverized. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
