粉煤灰和玻化微珠改性保温砌筑砂浆性能研究  

Research on the Performance of Thermal Insulation Masonry Mortar Modified with Fly Ash and Vitrified Beads

作　　者：刘执祥 肖斐 李永生 周恩泽 李小龙 许红升 LIU Zhixiang;XIAO Fei;LI Yongsheng;ZHOU Enze;LI Xiaolong;XU Hongsheng(Shandong Quality Inspection and Testing Center of Construction Engineering Co.,Ltd.;Shandong Academy of Building Research Co.,Ltd.)

机构地区：[1]山东省建筑工程质量检验检测中心有限公司 [2]山东省建筑科学研究院有限公司

出　　处：《广东建材》2024年第8期11-15,共5页Guangdong Building Materials

基　　金：2023年双碳共同体科技研发计划项目“低碳高性能建材生产与应用关键技术研究”(项目编号:STGTT0101202302).

摘　　要：为改善目前砌筑砂浆和易性和保温性较差的问题,以粉煤灰与硅酸盐水泥作为胶凝材料,玻化微珠和石英砂作为骨料,以及可再分散性乳胶粉、憎水剂、木质纤维素和纤维素醚复合作为添加剂,开发了一种新型保温砌筑砂浆,从干密度、抗压强度、导热系数和干燥收缩四个主要指标入手,确定了蒸压砂加气混凝土专用砌筑保温砂浆的最优配比,对提高自保温墙体的热工性能具有重要的意义。In order to improve the current problem of poor workability and retention of masonry mortar,a new type of thermal insulation masonry mortar was developed using fly ash and Portland cement as cementitious materials,vitrified beads and quartz sand as aggregates,and re-dispersible latex powder,hydrophobic agent,wood cellulose and cellulose ether composite as additives.Starting from the four main indicators of dry density,compressive strength,thermal conductivity,and dry shrinkage,the optimal ratio of thermal insulation mortar for autoclaved sand aerated concrete masonry was determined,which is of great significance for improving the thermal performance of self-insulation walls.

关 键 词：砌筑砂浆 粉煤灰 玻化微珠 物理性能 

分 类 号：TU551[建筑科学—建筑技术科学] TU578.1