Abstract
At present, researches on alkali-based geopolymer were mainly conducted under normal temperature or high temperature conditions, while few studies on alkali-based geopolymer under low temperature (<25 ?) or vacuum conditions have been reported. Since the slag-based geopolymer reacts quite rapidly at normal temperature, the depolymerization and polycondensation processes can be properly separated by low temperature conditions, which is beneficial for the study of the reaction process and mechanism of the alkali-based geopolymer. At the same time, the performance of the alkali-based geopolymer under vacuum and freeze-thaw cycles is explored in this paper, and the recycling and reuse of water is realized.
