| 摘要 |
PROBLEM TO BE SOLVED: To provide spraying concrete having enhanced adhesive strength in the case of spraying and a lower rebounding rate, hardly causing alkali aggregate reaction and excellent in durability and to provide a construction method for spraying the spraying concrete. SOLUTION: As a spraying material, the one containing lithium bentonite, the one containing lithium bentonite and sulfate, the quick-setting one containing lithium bentonite, sulfate and a quick-setting agent and a cement composition containing the quick-setting one are exemplified. |
