摘要
以白云石和工业三氧化二铝为原料,采用反应烧结技术制得了含镁铝尖晶石的铝酸盐水泥,探讨了原料及烧结温度和添加剂对含镁铝尖晶石的铝酸盐水泥性能的影响,XRD结果表明产物的物相组成为MA,CA,CA2;采用扫描电镜(SEM)及能谱(EDS)对产物的显微结构进行了观察与分析。结果表明:以轻烧白云石和工业Al2O3为原料制得的水泥具有较高的结合强度;所制得的含镁铝尖晶石的铝酸盐水泥的显微结构较为均匀,外加剂CaCl2具有明显的早强效果。
A new type of calcium aluminate cement containing MA spinel was produced by sintering the raw materials of dolomite and alumina mixture. The effects of raw materials and sintering temperature and additives on the properties of cements was were investigated. X-ray diffraction (XRD) results indicate that the final products consisted of CA, CA2 and MA. The microstructure of product was analyzed by means of scanning electron microscope (SEM) and energy dispersive spectrometry (EDS). The experiments results showed that the cement had the satisfied cold bonding strength and sintering properties when the light-burned dolomite and alumina were employed and fired at 1600℃. The new type cements has relatively uniform microstructure The early stage strength of the refractory castables bodies was greatly improved by adding 2wt.% of CaCl2 as a strength modifier.
出处
《西安建筑科技大学学报(自然科学版)》
CSCD
北大核心
2005年第3期411-415,共5页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
陕西省教育厅专项基金项目(2004JK216)
陕西省自然科学基金项目(2004E107)~~