碱矿渣胶凝材料的耐高温性能  

High-temperature resistance performance of alkali-activated slag cementitious materials

作　　者：郑文忠[1] 陈伟宏[1] 王英[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《华中科技大学学报（自然科学版）》2009年第10期96-99,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50178026;50678050);教育部新世纪优秀人才支持计划资助项目([2005]290);"十一五"国家科技支撑计划资助项目(2006BAJ03A10)

摘　　要：选用模数为2.0的水玻璃激发矿渣配制了水灰质量比为0.25的碱矿渣胶凝材料,并用水灰质量比为0.25的普通水泥石作了对比研究.利用扫描电镜和X射线衍射分析等测试手段,研究了碱矿渣胶凝材料在常温下和高温后的微观结构和物相组成,并通过测试碱矿渣胶凝材料经历不同高温后的名义抗压强度,来研究碱矿渣胶凝材料的耐高温性能.试验证明碱矿渣胶凝材料耐高温性能优于普通水泥石,碱矿渣胶凝材料经历600℃高温后的名义抗压强度不低于其常温下的抗压强度.Alkali-activated slag cementitious materials（AASCM） with water cement ratio is 0.25 was prepared by modulus is 2.0 water glass-activated slag.Then,this cementitious materials was compared with ordinary portland cement paste with water cement ratio is 0.25.The microstructure and phase composition of the AASCM at normal temperature and after different high temperature were investigated by means of X-ray diffraction（XRD） and SEM respectively.Fire-resistance performance of the AASCM was studied by testing the nominal compressive strength of AASCM after different elevated temperature. The test results verify that fire-resistance performance of the AASCM is better than that of ordinary cement paste and the nominal compressive strength of the AASCM after 600 ℃ is not lower than that at normal temperature.

关 键 词：碱矿渣胶凝材料 显微结构 物相组成 名义抗压强度 耐高温性能 

分 类 号：TQ172.72[化学工程—水泥工业] TQ637[化学工程—硅酸盐工业]