| 摘要 |
A process for producing cellular concrete articles in the so-called pre-foam fashion, comprises molding a mixture (D) of a cement compound slurry (A) comprising calcium silicate and a rapid-hardening cement compound slurry (B) comprising calcium aluminate and an aqueous foamed liquid (C), and subjecting the molded article to hydrothermal curing, both the slurries (A) and (B) containing specified certain cement-setting retarders, respectively. By the synergistic effect of these two different retarders, an exotherm dwell period is provided in the initial setting stage of the foamed mixture (D). |
