热工制度对煤矸石页岩烧结砖性能及微孔结构的影响  

The influence of thermal regulation on the performance and micropore structure of coal gangue shale sintered brick

作　　者：马保国[1] 陈方颉 蹇守卫[1] 孔维[1] 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,湖北武汉430070

出　　处：《新型建筑材料》2014年第5期52-55,共4页New Building Materials

基　　金：国家科技支撑计划课题(2011BAJ04B01)

摘　　要：将煤矸石与页岩按9∶1的质量比混合,以抗压强度、烧结收缩率、体积密度、显气孔率及显微结构作为指标,分析了不同的烧结温度及烧结时间对煤矸石页岩烧结砖微孔结构的影响。结果表明:烧结温度为950℃、1000℃、1050℃时,煤矸石页岩烧结砖的抗压强度、烧结收缩率、体积密度随烧结温度的升高逐渐提高,显气孔率逐渐降低,气孔也随之变小;烧结温度为1050℃,烧结时间由0.5h增加到4h时,试件的抗压强度、烧结收缩率、体积密度也逐渐提高,显气孔率逐渐降低,气孔也随之变小。This paper studied the influence of thermal regulation on the performance and micropore structure of coal gangue shale sintered brick by mixing the gangue and shale in the mass portion of 9：1,which is indicated by the compressive strength, the sintering shrink,volume density,apparent porosity and mieropore strueture. It turns out that when the sintering temperature is 950 ℃, 1000 ℃, and 1050 ℃,the compressive strength,the sintering shrink and volume density increase as the sintering tempera- ture rises,the apparent porosity decreases as it rises. By increasing the sintering time from 0.5 h to 4 h,the compressive strength, the sintering shrink and volume density rise gradually and the apparent porosity decreases when the sintering temperature is 1050 ℃.

关 键 词：煤矸石页岩烧结砖 微孔结构 烧结制度 

分 类 号：TU522.1[建筑科学—建筑技术科学]