熟石灰掺量对矿粉-粉煤灰二元碱激发胶凝材料性能影响  

Effect of Hydrated Lime Content on the Properties of Mineral Powder Fly Ash Binary Alkali Activated Cementitious Materials

作　　者：薛盛龙 曾亮 石齐 Xue Shenglong;Zeng Liang;Shi Qi(Jiangxi Building Materials Product Quality Supervision and Inspection Station Co.Ltd.,Nanchang,Jiangxi 330001;Jiangxi building materials research and Design Institute Co.Ltd,Nanchang,Jiangxi 330001)

机构地区：[1]江西省建材产品质量监督检验站有限公司,江西南昌330001 [2]江西省建材科研设计院有限公司,江西南昌330001

出　　处：《江西建材》2023年第10期70-72,75,共4页Jiangxi Building Materials

基　　金：江西省科技厅重点研发计划项目《利用江西省大宗固废制备低碳水泥关键技术研究与应用》(项目编号:20214BBG74003)。

摘　　要：文中研究熟石灰掺量(2%、4%、6%、8%)对矿粉-粉煤灰二元碱激发胶凝材料微观形貌、强度、化学结合水含量及凝结时间的影响。结果表明,SF-8的28 d抗压强度能达到30.56 MPa,与SF-2相比,其抗压强度和化学结合水含量均已提高,凝结时间缩短,熟石灰适宜掺量能促进矿粉-粉煤灰二元碱激发胶凝材料水化,提高浆体致密性。By studying the effects of hydrated lime content(2%,4%,6%,8%)on the micro-structure,strength,chemically bound water content,and setting time of mineral powder fly ash binary alkali activated cementitious materials.The results show that compared with SF-2,SF-8 can improve its flexural compressive strength and chemically bound water content,shorten its setting time,and the addition of hydrated lime can promote the hydration of the mineral powder fly ash binary alkali activated cementitious material,thereby improving the compactness of the slurry.

关 键 词：熟石灰 化学结合水含量 碱激发 力学性能 

分 类 号：TU522[建筑科学—建筑技术科学]