| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a centrifugally molded concrete product producible without requiring special production equipment and also without generating sludge. <P>SOLUTION: The centrifugally molded concrete product is obtained by centrifugally molding a blend comprising: (A) cement having a Blaine specific surface area of 2,500 to 5,000 cm<SP>2</SP>/g in an amount of 100 pts.mass; (B) particulates having a BET specific surface area of 5 to 25 m<SP>2</SP>/g in an amount of 10 to 40 pts.mass; (C) inorganic particles having a Blaine specific surface area of 2,500 to 30,000 cm<SP>2</SP>/g which is also larger than that of the cement in an amount of 15 to 55 pts.mass; (D) a fine aggregate; (E) a water reducer; and (F) water, wherein in a method described in a flow test according to JIS R 5201 (a physical test method for cement) 11, the value measured without performing drop operations for 15 times is 105 to 150 mm. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
