混凝土接缝用自流平密封胶的制备及性能研究  

Production and Performance Study of Self-leveling Sealant for Concrete Joints

作　　者：赖振峰[1,2] 王万金[1,2] 朱宁[1,2] 夏义兵[1] 王靖[1,2] 吴敬朋[1] 马强[1] 查炎鹏[1] 

机构地区：[1]北京市建筑工程研究院有限责任公司,北京100039 [2]北京市功能性高分子建筑材料工程技术研究中心,北京100039

出　　处：《中国建筑防水》2017年第1期17-20,共4页China Building Waterproofing

摘　　要：以硅烷改性聚醚聚合物为基础聚合物,通过加入适量碳酸钙、聚醚增塑剂等助剂,制备了一种单组分自流平硅烷改性聚醚密封胶。该密封胶具有低模量、自流平和良好的施工性能,密封胶固化后的拉伸模量为0.4~0.5 MPa,符合标准JC/T 976—2005《道桥嵌缝用密封胶》中25LM级密封胶的性能指标要求。Taking silane modified polyether as basis, a single component self-leveling silane modified polyether sealant is produced by adding right amounts of calcium carbonate, polyether plasticizer and other additives. The produced sealant has the characteristics of low modulus, self-leveling and excellent workability. After curing, the tensile modulus of the sealant can be up to 0.4-0.5 MPa, and this can meet the performance requirement of grade 25LM sealant stipulated in standard JC/T 976-＇-2005 ＂Sealant for road and bridge joints sealing＂.

关 键 词：混凝土接缝 密封胶 硅烷改性聚醚 自流平 

分 类 号：TU578[建筑科学—建筑技术科学]