| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique of spraying ultrahigh strength fiber-reinforced mortar which allows development of required strength with good application efficiency at good costs.SOLUTION: A method of spraying ultrahigh strength fiber-reinforced mortar comprises adding 0.05-0.8%, based on the solid content and the weight ratio to the weight of a powder 4 containing a cement 1, silica fume 2 and fine aggregate 3, of an accelerating agent to a blend material comprising the cement 1, the silica fume 2, the fine aggregate 3, water 6, a water reducing agent 7 and a high-tensile-strength fiber 8 to form ultrahigh strength fiber-reinforced mortar 10 and spraying the ultrahigh strength fiber-reinforced mortar 10. |
