桥梁无缝伸缩缝RBJ超韧弹性体性能试验研究  

Experimental Study on Road Performance of Resin Elastomer for Bridge Seamless Expansion Joints

作　　者：黄宏辉 袁青嵩 钱晋 佟冠中 姚庆军 张春飞 张辉 HUANG Honghui;YUAN Qingsong;QIAN Jin;TONG Guanzhong;YAO Qingjun;ZHANG Chunfei;ZHANG Hui(CCCC Second Harbor Third Engineering Co.,Ltd.,Zhenjiang 212000,China;CCCC Second Harbor Jiangsu Construction and Development Co.,Ltd.,Taizhou 225300,China;The Taizhuo Audit Bureau,Taizhou 225300,China;The Taizhou Transportation Bureau,Taizhou 225300,China;Jiangsu Sinoroad Engineering Research Institute Co.,Ltd.,Nanjing 211800,China)

机构地区：[1]中交二航局第三工程有限公司,江苏镇江212000 [2]中交二航江苏建设发展有限公司,江苏泰州225300 [3]泰州市审计局,江苏泰州225300 [4]泰州市交通运输局,江苏泰州225300 [5]江苏中路工程技术研究院有限公司,江苏南京211800

出　　处：《国防交通工程与技术》2024年第5期87-91,共5页Traffic Engineering and Technology for National Defence

摘　　要：为满足公路桥梁无缝化建设需求,自主研发了桥梁无缝伸缩装置RBJ(resin bridge joints)超韧弹性体填充材料,进行胶结料和弹性体性能试验,并与同类产品进行对比。试验结果表明,超韧弹性体常温条件下施工容留时间大于30 min,硬度在65 IRHD左右,拉伸强度9.12 MPa,断裂伸长率736%,表现出优异的力学特性与变形性能;超韧弹性体60℃车辙深度仅为0.7 mm,动稳定度达到30000次/mm,-10℃下抗弯拉应变(>40000με)显著高于传统沥青类材料。可作为桥梁无缝伸缩装置理想填充材料。To meet the demand for seamless construction of highway bridges,a super-tough elastic filling material,RBJ(resin bridge joints),was independently developed for bridge seamless expansion joints.The performance of this elastomer was experimentally studied and compared with similar products.The results indicate that under normal temperature conditions,the construction tolerance time of the super-tough elastomer exceeds 30 minutes,with a hardness of approximately 65 IRHD,a tensile strength of 9.12 MPa,and an elongation at break of 736%.These properties demonstrate excellent mechanical and deformation performance.The rut depth of the super-tough elastomer at 60℃is only 0.7 mm,with a dynamic stability of 30,000 cycles/mm.Additionally,the flexural tensile strain at-10℃is significantly higher than that of traditional asphalt materials,exceeding 40,000με.This makes it an ideal filling material for seamless expansion joints in bridges.

关 键 词：桥梁工程 无缝伸缩缝 树脂弹性体 路用性能 试验研究 

分 类 号：U414[交通运输工程—道路与铁道工程]