| 摘要 |
PROBLEM TO BE SOLVED: To provide a quick-setting agent for cement enabling the production of a cement concrete having low fluidity, causing little splash of the cement concrete in pneumatic application, applicable without causing the separation of the components even in the presence of water, sufficiently applicable to a part having voids such as cracks and efficiently giving a quick-setting cement concrete to enable quick application of the concrete, and to provide a method of producing the quick-setting cement concrete by using the quick-setting agent. SOLUTION: The present invention provides the quick-setting agent for cement containing a soluble aluminum salt and a fluoride compound, the quick- setting agent wherein the soluble aluminum salt is aluminum sulfate or sodium alum, the quick-setting agent wherein the fluoride compound is sodium fluoride, and the method of producing the quick-setting cement concrete comprising the separate transfer of the quick-setting agent for cement and cement concrete and the mixing of both components at the tip end of a nozzle. |
