| 摘要 |
PURPOSE: To obtain a method for producing a nice-looking, lightweight and high-strength foamed concrete product appropriate for the lightweight and high-strength building and construction concrete product excellent in water impermeability. CONSTITUTION: A binder, water and a water reducing agent are mixed and kneaded to produce a paste in a first stage, and a preformed bubble is added to the paste and kneaded to produce a foamed mortar in a second stage. A lightweight aggregate is added to the foamed mortar and kneaded to produce a lightweight foamed concrete composition in a third stage, the composition is placed in a molding flask, set and then steam-cured in a fourth stage, and the lightweight and high-strength foamed concrete product is obtained. IN the third stage, the composition is formed into 8-24cm slump, and a molding flask coated with a water-soluble release agent is used as the molding flask to place the composition. |
