Yang Xinya 33) studied the production of gypsum blocks from fluoropressin. From CaO, slag, water Two inorganic salt compound activators JF and JF2 were screened out from mud, sulfates, alingite and chlorine salts To increase its hydration rate. The material ratio of gypsum block production is: fluoro-gypsum 45%-50%, β hemihydrite Paste 25% 40%, pulverized coal fire 0 ~ 20%, lime 3% ~ 5%, 0.2% ~ 0.5%, spreads JF2 0.2% ~ 0.5%.The production process is: anhydrous fluorite green, fly ash 40 mesh sieve, adding lime, β hemihydrate gypsum, plus The water consumption of standard consistency was measured by the method of standard thickness determination of building gypsum, and then the water was cast into shape and removed After the mold natural curing to each age to measure its strength. This method produces gypsum blocks with a compressive strength of up to 28d 13.8MPa, far beyond the density of 800~1200kg/m' specified in the international standard ISO/DP7549 The standard for compressive strength greater than 5MPa.Fluorspar Kenair block has small volume density, low thermal conductivity, heat preservation, heat insulation, sound insulation, fire prevention,Has sufficient mechanical strength and other characteristics. After the application in the building, it can reduce the investment of the building structure and speed up the application
Work progress, greatly improve the energy saving effect of the building, effectively regulate the indoor temperature. Also, fluorspar is used Paste aerated block, but also can save wall material transportation costs of more than 30%, construction units and use units Have benefits. Therefore, the development and utilization of this product is not only conducive to environmental protection and the full utilization of resources, but also and it has good economic benefit to the production plant, the user and the construction unit.
