| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hydraulic composition which contains flyash and blast furnace slag powder being industrial byproducts as main components and provides concrete having strength equal to that of high strength concrete even without using cement while making efficient use of the flyash and blast furnace slag powder, and to provide concrete using the hydraulic composition. <P>SOLUTION: The hydraulic composition contains the flyash, the blast furnace slag powder, gypsum and slaked lime as an alkali stimulant, wherein 20-40 mass% flyash, 36-65 mass% blast furnace slag powder, 5-10 gypsum and 2-15 mass% slaked lime are contained. The high strength concrete having 60 N/mm<SP>2</SP>compressive strength is obtained by kneading the hydraulic composition, coarse aggregate, fine aggregate, high performance water reducer and kneading water having a mass ratio of water/hydraulic composition of≤25%. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
