A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a process for preparing a composite foamed cement board. The composite foamed cement board is prepared from cement, fly ash, a water repellent, a water reducing agent, hydrogen peroxide, KN9900, an F-series early strength agent, TEA, Na2SO4, MnO2, water and polypropylene fibers at the room temperature of about 22 DEG C, wherein the ratio of cement to fly ash to mineral powder is 1:0.15:0.15, the ratio of water to material is 0.48, the content of the water reducing agent is 0.38%, the content of hydrogen peroxide is 5%, the content of KN9900 is 4%, the temperature of slurry is 45 DEG C, the revolving speed of a stirrer is 2,000r/min, the content of the F-series early strength agent is 0.3%, the content of TEA is 0.05%, the content of Na2SO4 is 0.5%, the content of MnO2 is 0.4%, and the content of the polypropylene fibers is 0.4%. The process for preparing the composite foamed cement board, provided by the invention, has the advantage that the performance is better.
The invention provides a process for preparing a composite foamed cement board. The composite foamed cement board is prepared from cement, fly ash, a water repellent, a water reducing agent, hydrogen peroxide, KN9900, an F-series early strength agent, TEA, Na2SO4, MnO2, water and polypropylene fibers at the room temperature of about 22 DEG C, wherein the ratio of cement to fly ash to mineral powder is 1:0.15:0.15, the ratio of water to material is 0.48, the content of the water reducing agent is 0.38%, the content of hydrogen peroxide is 5%, the content of KN9900 is 4%, the temperature of slurry is 45 DEG C, the revolving speed of a stirrer is 2,000r/min, the content of the F-series early strength agent is 0.3%, the content of TEA is 0.05%, the content of Na2SO4 is 0.5%, the content of MnO2 is 0.4%, and the content of the polypropylene fibers is 0.4%. The process for preparing the composite foamed cement board, provided by the invention, has the advantage that the performance is better.