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钢桥面铺装聚合物防水粘结层材料的 研究与性能

作者:李书飞1,胡超峰2,祝闯2,蔡硕果3,孙传夏4

关键字:钢,桥面,铺装,聚合物,防水,粘结,层,材料,的,

 
(1.北京建筑大学 土木与交通工程学院,北京市城市交通基础设施工程技术中心,北京  100044; 
2.河南中原高速公路股份有限公司,河南 郑州  450000;3.北京特希达交通勘察设计院有限公司,北京  100067;
4.河南省交通运输厅公路管理局,河南 郑州  450015)
摘要:钢桥面铺装层由于层间粘结失效导致铺装层的使用寿命远远低于桥梁结构的使用年限。为了延长桥面铺装层的使用寿命,改善层间粘结状况,研究开发了一种聚合物防水粘结层,并对其在不同钢板表面清洁度、粗糙度及不同涂覆量和不同固化时间下的层间粘结强度进行了测试评价。通过与环氧沥青粘结层的对比发现,该聚合物防水粘结层材料强度高,温度稳定性好。在钢板表面清洁度达到Sa2.5,粗糙度60 μm,涂覆量为0.5 kg/m2,固化时间为40 min时,其粘结强度达到最优。
关键词:钢桥面铺装;聚合物防水粘结层;粘结强度;影响因素
中图分类号:TU56+1.65        文献标识码:A        文章编号:1001-702X(2019)07-0114-05
 
Development and performance evaluation of polymer waterproof bonding layer material for 
bridge deck pavement
LI Shufei1,HU Chaofeng2,ZHU Chuang2,CAI Shuoguo3,SUN Chuanxia2
(1.School of Civil Engineering and Transportation,Beijing University of Civil Engineering and Architecture,Beijing Urban Traffic Infrastructure Engineering Research Center,Beijing 100044,China;
2.Henan Zhongyuan Expressway Co. Ltd.,Zhengzhou 450000,China;
3.Beijing Texida Transportation Facilities Consultants Co. Ltd.,Beijing 100067,China;
4.Henan Provincial Department of Transportation Highway Administration,Zhengzhou 450015,China
Abstract:The steel bridge deck pavement has a short service life due to the failure of interlayer bonding,which is far lower than the service life of the bridge structure. In order to extend the service life of the deck pavement layer and improve the interlayer adhesion,this study developed a polymer waterproof adhesive layer,which has different cleanliness and roughness on different steel sheet surfaces and different coating amounts and different interlaminar bond strength at the curing time was evaluated. Compared with the epoxy asphalt bonding layer, the polymer waterproof bonding layer material has high strength and good temperature stability. When the surface cleanliness of the steel plate reaches Sa2.5,the roughness is 60 μm,the coating amount is 0.5 kg/m2,and the curing time is 40 min,the bond strength is optimal.
Key words:steel bridge deck pavement,polymer waterproof bonding layer,bond strength,influencing factors