项目名称: |
Fast Construction and Repair of Bridge Elements Using Low Carbon Foot Print SCC and UHPC Prefabricated Panels Reinforced with FRP |
摘要: |
The service life of concrete infrastructure elements depends on the quality of the cover-crete; outer 50 mm of the concrete. The use of high-performance concrete can indeed prolong service life of the material. However, this material is still prone to cracking. Recently, ultra high-performance concrete (UHPC) has been introduced which has much higher mechanical properties and toughness than HPC. UHPC is typically a micro-mortar reinforced with micro fibers (typically steel fibers) resulting in extremely impermeable and crack-resistant material. Such material can be used to produce precast panels that can be assembled on-site for the construction of bridge vertical elements, such as the construction of girder and bridge pier elements. This project aims at developing UHPC that can be used as a formwork system for cast in-place bridge construction. The proposed units are targeted for bridge construction and use low carbon foot print self-consolidating concrete (SCC) and UHPC prefabricated panels reinforced with fiber-reinforced plastic (FRP) bars. The use of the proposed approach can result in several advantages for the United States transportation infrastructure system, including: (1) design of fast construction and rehabilitation system for transportation infrastructure that can exhibit extended service life; (2) use of environmentally friendly SCC to cast the structural element can provide a rapid construction procedure; (3) notable savings in labor and time by designing a permanent formwork system. |
状态: |
Active |
资金: |
140000.00 |
资助组织: |
Missouri University of Science & Technology, Rolla |
执行机构: |
Islandic Road Association |
开始时间: |
20120801 |
实际结束时间: |
20131231 |
主题领域: |
Bridges and other structures;Construction;Highways;I15: Environment;I30: Materials |