高胶凝性阿利特硫铝酸钙钡矿相体系的研究  

STUDY ON MINERAL SYSTEM OF ALITECALCIUM BARIUM SULPHOALUMINATE WITH GOOD BINDING CHARACTERISTIC

作　　者：程新[1] 芦令超[1] 王来国[1] 常钧[1] 刘福田[1] 陈亚明[1] 叶正茂[1] 

机构地区：[1]济南大学材料科学与工程学院,济南250022

出　　处：《硅酸盐学报》2004年第3期321-326,共6页Journal of The Chinese Ceramic Society

基　　金：国家重点基础研究 973计划 (2 0 0 1CB610 70 1)资助课题

摘　　要：以分析纯化学试剂为原料 ,对以阿利特与硫铝酸钙钡为主导矿物的高胶凝性矿相体系进行了研究。探讨了体系组成、烧成温度和微量元素对熟料性能的影响。结果表明 :C(B) 4A3S与C3S等矿物可以通过低温固相反应形成并共存于同一熟料体系中 ,这为高胶凝性阿利特硫铝酸钙钡矿相体系的合成奠定了重要基础。在实验所设计的体系组成与制备工艺条件下 ,确定C(B) 4A3S在矿物体系中的适宜质量分数 (下同 )应低于 10 % ,体系的烧成温度确定为 13 60℃ ,当温度达到 13 90℃时 ,含硫矿物仍不会分解 ,预示该熟料具有一定的烧成范围。少量CaF2对提高该体系的力学性能有一定作用 ,适宜含量为 1.0 %～ 1.5 %。由该熟料制备的水泥 ,以 0 .3 0水灰比制备的一些样品抗压强度在 2 8d龄期已接近 90MPa ,展现出良好的前景。采用XRD ,SEM /EDS和岩相分析 ,对熟料的组成、显微结构与形貌进行了分析。The mineral system of alite-calcium barium sulphoaluminate with good binding characteristic was synthesized with chemical reagents as raw materials. The influence of the system constituent, calcined temperature and some microelements on the performance of the clinker was studied. Results show that the C(B)4A3S¯=S and C3S minerals can be synthesized in the low temperature solid state reaction and coexisted in the same clinker system. The most suitable proportion of C(B)4A3S¯=S in the clinker is less than 10% in mass fraction. The calcined temperature of the system is 1360°C and C(B)4A3S¯ can not be decomposed until 1390°C. A suitable content of CaF2(1.0%-1.5%, in mass fraction) can improve the mechanical performance of the clinker. The compressive strength of some samples with the 0.3 mass ratio of water to cement reaches 90 MPa at 28 d age. The composition, structure and morphology of the clinkers were analyzed by means of XRD, SEM/EDS and microscope.

关 键 词：胶凝性 阿利特 硫铝酸钙钡 矿物体系 抗压强度 

分 类 号：TQ172.99[化学工程—水泥工业]