| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid quick setting agent having small rebound ratio.SOLUTION: A liquid quick setting agent contains 100 parts of an aluminium sulfate and less than 2 parts of a bisphenol S. The average molecular weight of the bisphenol S is preferably 5,000 to 30,000. The solid content concentration of the aluminium sulfate in the liquid quick setting agent is preferably 30 to 40%. A polyalkylene oxide may be included in a cement concrete side. The average molecular weight of the polyalkylene oxide is preferably a million to 5 million. A spraying method includes mixing a cement concrete and the liquid quick setting agent. |
