煤基固废协同利用制备硅酸钙板的试验研究

摘要

The calcium silicate board with tobermorite (5CaO· 6SiO2·5H2O) was prepared by using silicium-calcium slag, fly ash and desulfurization gypsum as raw materials. The study shows that the strength of calcium silicate board can be improved, when the silicium-calcium slag content is lower than 50%, and there is a mutual concurrent effect between with fly ash and silicium-calcium slag. So the calcium silicate board can get the best properties, only if proportion of fly ash and silicium-calcium slag is appropriate.%以硅钙渣、粉煤灰、脱硫石膏等为原料制得了托贝莫来石型（5CaO·6SiO2·5H2O）硅酸钙板。研究表明，硅钙渣掺量不高于50%时，有助于硅酸钙板强度的提高，粉煤灰和硅钙渣之间存在相互协同所用，只有二者的配比适当时硅酸钙板的性能才能够达到最佳。