中文摘要：

采用X射线衍射仪、环境扫描电子显微镜（背散射电子成像）、压汞仪分析了养护温度对铝酸盐水泥-硅酸盐水泥-无水石膏三元体系水化早期的水化相组成、抛光断面微观结构和孔结构等微结构演变的影响。结果表明：无论0℃还是40℃养护,三元体系的主要水化产物始终为水化硫铝酸钙类物相;但养护温度越高,所生成的钙矾石越易向单硫型水化硫铝酸钙转变,且转变得越早,所得硬化浆体的最可几孔径越大。此外,40℃养护3 d后的浆体中还生成了水化钙铝黄长石和三水铝石。

英文摘要：

The effect of curing temperature on the early hydration of calcium aluminate cement-Portland cement-anhydrite ternary blends was determined by calorimetry, X-ray diffraction, environmental scanning electronic microscopy （backscattered electron imaging） and mercury intrusion porosimetry, respectively. The related phase composition, microstructure of fracture surface and pore structure were investigated. The results reveal that the main hydration products are related to calcium sulphoaluminate based phases cured at 0 ℃or 40 ℃. Increasing curing temperature results in a rapider conversion from ettringite to plate-like monosulfate and a greater amount of coarser pores. In addition, results in an extraordinary formation of straetlingite and aluminium hydroxide was observed in the case of the highest curing temperature （i.e., 40 ℃）.