Corrosion Resistant Steel for Highway Bridges
项目名称: Corrosion Resistant Steel for Highway Bridges
摘要: The objective of the subject program is to develop a new "improved" steel composition with weathering characteristics significantly superior to any of the steels listed in ASTM 709, "Standard Specification for Structural Steel for Bridges", such that its life cycle will be at least two times longer than any ASTM 709 steel in a highway bridge subjected to extensive use of salt as a deicing agent. The "improved" steel shall (1) be readily producible by American steel companies on existing facilities, (2) meet the design specifications of the American Association of State Highway and Transportation Officials (AASHTO)and have mechanical properites similar to "today's steel grades", (3) have a high level of weldability when joined by processess such as SAW, SMAW, FCAW, and GMAW, and (4) have a cost similar to the corresponding A709 steels unless the steel has a "higher strength that reduces the steel required for a given application" and provides "improved corrosion resistance in mild chloride environments and life cycle cost"; and thereby justifies a "first cost premium".
状态: Active
资金: 398000.00
资助组织: Federal Highway Administration
项目负责人: Virmani, Paul
执行机构: Lehigh University
开始时间: 20070000
实际结束时间: 20100000
主题领域: Bridges and other structures;Highways;I30: Materials
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