| 摘要 |
PROBLEM TO BE SOLVED: To provide a spray material giving a spray structure, which has small amount of dust, small amount of mist and small rebound, enhances long-term strength and excels in durability. SOLUTION: The spray material contains a hydraulic material, aggregate, polymer emulsion, cement concrete having water and a liquid quick setting admixture having an alkali metal aluminate. The spray material may include fiber, a viscosity modifier and fine powder. The liquid quick setting admixture may include alkali metal carbonates. |
