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原文传递 Wearing Surface Testing and Screening: Yukon River Bridge. Final Report.

题名：	Wearing Surface Testing and Screening: Yukon River Bridge. Final Report.
作者：	Hulsey, J. L.; Ward, R.; Anderson, E.
关键词：	Highway bridges, Bridge decks, Protective coatings, Road materials, Steel structures, Temperature fluctuations, Expoxy matrix composites, Solvents-paints/related coatings/materials, Charpy impact test, Seal coats, Strain test, Yukon river bridge, Alaska
摘要：	There is a demand and a need for cheaper and alternative surface coverings in environments with high temperature fluctuations. Our design for an alternative surface covering involves a basic two-part component epoxy with the addition of a solvent. The purpose of the solvent is to disrupt the reaction that forms the ordered chains to form a more disordered crystalline structure. The solvent in the finished product is 3% by volume of isopropyl alcohol. This mixture of epoxy and solvent has higher impact strength than epoxy alone, as well as a much lower brittle transition temperature of ?27癈 compared with 10癈 for epoxy. An environmental chamber, tensile tester, Charpy impact tester, and 4-point bending test were used to determine these conclusions. The final product can be tailored with different aggregates to fit a specific need, such as decking surface material to coat the wooden planks on the Yukon River Bridge. 14-
总页数：	Hulsey, J. L.; Ward, R.; Anderson, E.
报告类型：	科技报告