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原文传递 Application of Stainless and Stainless-CIad Steel Reinforcing Bars in Highway Construction

题名：	Application of Stainless and Stainless-CIad Steel Reinforcing Bars in Highway Construction
作者：	J.E. Bower. L.E. Friedersdorf. B.H. Neuhart, A.R. Mander, and A.I. Juda
关键词：	enforcing bars, dowel bars, stainless steel, stainless dad steel, concrete, bridge deck, pavement
摘要：	Increasing the durability of reinforced concrete systems for transportation structures has been a long-standing goal of federal and state Imsportation agencies. The strategy of increasing the corrosion resistance of the reinforcing material is common, with epoxy-coated Bon-steel reinforcing bars having a major share of the current market. However, one idea with growing support that overcomes Troubles that some states have experienced with epoxy-coated bars is to apply stainless steel reinforcement, which has much higher Inberent resistance to corrosion than other coated or uncoated bar systems. Therefore, an assessment was made for PennDOT of the Post research, current applications, governing specifications, properties, cost factors, and competing systems that can affect the choice Cuse either solid stainless steel or stainless-dad steel reinforcement. It is concluded teat the numerous field installations and laboratory Studies, which have teen conducted in about 30 states, Canada, and Europe, provide strong positive evidence that highway application solid stainless reinforcement and, to a lesser extent, stainless-dad reinforcement would benefit PennDOT. Stainless and stainless- and reinforcement would provide a high degree of corrosion resistance, extended pavement and bridge-deck life - even in heavy oride environments-and reduced life-cycle cost These gains are achievable without any sacrifice in mechanical and other properties and require only the formulation of a specification by PennDOT that permits the use of stainless and stainless-dad reinforcement
报告类型：	科技报告