PERFORMANCE AND APPLICATION OF UHPC IN THE REPAIR OF THE BRIDGE EXPANSION JOINT
The unique features of ultra high performance concrete (UHPC) in damage tolerance, energy absorption, fatigue resistance and deformability are combined with a potential application in the repair of the bridge expansion joint.Based on compressive strength test, flexural strength test and shrinkage slab test under different hybrid mode of the fibers including steel fiber, PVA fiber and polypropylene fiber, an improved UHPC with high strength, good crack resistance ability and the curing at normal temperature is developed.The application of the Bijia mountain bridge in Wuji highway shows the proposed UHPC using in the repair of the expansion joint can quickly restore the traffic, improve the service life and lower the late operation cost.The research achievement can be as a reference of the same bridge expansion joint maintenance.
Bridge expansion joint Ultra high performance concrete repair Hybrid fiber Application
Liang Ren Kai Wang Mingyuan Liang Shuai Wen
School of civil engineering and architecture, East China Jiao Tong University, China
国际会议
福州
英文
827-832
2018-11-07（万方平台首次上网日期，不代表论文的发表时间）