Slag gypsum-based cementing material and preparation method thereof

The invention relates to the technical field of building materials, and particularly discloses a slag gypsum-based cementing material and a preparation method thereof. The slag gypsum-based cementing material comprises the following raw materials in parts by weight: 150-170 parts of slag, 20-40 parts of gypsum, 2-10 parts of an alkaline component and 0.2-0.8 part of a blending material, the blending material is prepared from the following raw materials in parts by weight: 3 to 7 parts of dendrimer, 40 to 60 parts of calcium nitrate and 60 to 80 parts of sodium metasilicate. The slag gypsum-based cementing material has the advantage of improving the early strength and carbonization resistance of a building component prepared from the slag gypsum-based cementing material. 本申请涉及建筑材料技术领域，具体公开了一种矿渣石膏基胶凝材料及其制备方法。矿渣石膏基胶凝材料包括如下重量份数的原料：矿渣150-170份、石膏20-40份和碱性成分2-10份和掺合材料0.2-0.8份；所述掺合材料包括如下重量份数的原料：树形分子3-7份、硝酸钙40-60份、偏硅酸钠60-80份。本申请具有提高矿渣石膏基胶凝材料制备得到的建筑构件的早期强度、抗碳化性能的优点。