| 摘要 |
PROBLEM TO BE SOLVED: To provide a spraying material of cement/concrete capable of preventing hanging down of concrete immediately after spraying or slipping down from a slope, ensuring fine sight of the slope face because of having time for trowel-finishing, and to provide a spraying material especially for public works to prevent the sliding of a steep slope or to spray on a frame arranged in lattice form for example on a slope apt to fall down, and to provide a spraying process using the spraying material. SOLUTION: The spraying material comprises polyalkylene oxide, a condensation reaction product containing trisphenols having an average molecular weight of 10,000 to 50,000, an alkali metal carbonate, and further comprises cement. The spraying process is characterized by mixing cement/concrete containing cement and polyalkylene oxide with an alkali metal carbonate and the condensation reaction product containing trisphenols, immediately before spraying, and spraying the spraying material onto a slope formed as the frame skeleton by arranging reinforcement. |
