浆体活化改性偏高岭土对聚合物水泥防水砂浆性能的影响研究  

Study on Effect of Slurry Activated&Modified Metakaolin on the Performance of Polymer Cement Waterproofing Mortar

作　　者：孔赟 田焜 王月兰 徐淼 陶瑞鹏 Kong Yun;Tian Kun;Wang Yuelan;Xu Miao;Tao Ruipeng(Hubei Institute of Quality Supervision and Inspection,Ezhou,Hubei 436070,China)

机构地区：[1]湖北省产品质量监督检验研究院,湖北鄂州436070

出　　处：《中国建筑防水》2024年第11期22-25,共4页China Building Waterproofing

基　　金：湖北省市场监督管理局技术保障项目(Hbscjg-JS2023002)。

摘　　要：制备了浆体活化改性偏高岭土,考察了其对聚合物水泥防水砂浆工作性能、力学性能、抗渗性能和收缩性的影响。结果表明:浆体活化改性偏高岭土提高了砂浆的流动性,显著提升了砂浆的力学性能;浆体活化改性提高了偏高岭土掺和料的活性反应率,并进一步优化了二次水化产物和孔径分布,从而提升砂浆的抗渗压力和收缩性。Slurry activated&modified metakaolin is prepared,and its effects on the workability,mechanical properties,impermeability and shrinkage of polymer cement waterproofing mortar are investigated.The results show that the slurry activated&modified metakaolin improved the flowability of the mortar and significantly enhanced its mechanical properties;the activated modification of the slurry improves the activity reaction rate of the kaolin admixture,and further optimizes the secondary hydration products and pore size distribution,thereby enhancing the impermeability pressure and contractility of the mortar.

关 键 词：聚合物水泥防水砂浆 浆体活化改性偏高岭土 流动性 力学性能 抗渗性 收缩性 

分 类 号：TU578.12[建筑科学—建筑技术科学] TU502