CONCRETE MANUFACTURING METHOD AND APPARATUS FOR USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an extremely simple manufacturing method of high strength concrete by uniformly dispersing a silica fume blended material in concrete in manufacturing high strength concrete using a silica fume slurry and ensuring flowability by preventing the plastification of a high performance AE water reducing agent and the silica fume slurry, and a concrete manufacturing apparatus capable of realizing the same simply and economically. SOLUTION: Cement, fine aggregate and coarse aggregate are charged in a mixer to be kneaded, and the silica fume slurry and kneading water are subsequently charged in the mixer to be kneaded. The high perfermance AE water reducing agent is charged in the mixer to be further kneaded with the kneaded matter after the cement and the silica fume slurry are kneaded to be dispersed mutually to manufacture high strength concrete. By this method it becomes unnecessary to use the high performance AE water reducing agent having specific compositional components corresponding to a concrete composition as is conventional. COPYRIGHT: (C)2006,JPO&NCIPI