| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cement composition which has satisfactory fluidity and excellent operability, before hardening, and exhibits high compressive strength and a high static elastic modulus and has a low shrinkage percentage, after hardening. <P>SOLUTION: The cement composition comprises: (A) cement: (B) the pulverized matter of a fired body consisting essentially of 2CaO-SiO<SB>2</SB>and 2CaO-Al<SB>2</SB>O<SB>3</SB>-SiO<SB>2</SB>, wherein the content of 2CaO-Al<SB>2</SB>O<SB>3</SB>-SiO<SB>2</SB>+4CaO-Al<SB>2</SB>O<SB>3</SB>-Fe<SB>2</SB>O<SB>3</SB>is 10 to 100 pts.mass based on 100 pts.mass of 2CaO-SiO<SB>2</SB>; (C) fine powder with a BET specific surface area of 5 to 25 m<SP>2</SP>/g; (D) fine aggregate; (E) a water reducing agent; and (F) water. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
