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04989aam a2200577Ic 4500 001 F2474FD8B7CA11EC864CB83724ECA4DB 003 SILO 005 20220409010100 008 150108s2014 iauado fsbt s000 0 eng d 035 $a (OCoLC)899553987 040 $a UIG $b eng $e rda $c UIG $d SILO 088 $a InTrans Project 13-481 088 $a Iowa DOT Project TR-666 100 1 $a Phares Brent $e author $u Iowa State University 245 00 $a Investigation of Field Corrosion Performance and Bond/Development Length of Galvanized Reinforcing Steel $c Brent Phares, Yoon-Si Lee, Brian Keierleber, Jack Hupp, and Anurag Samudrala 264 1 $a Ames, Iowa $b Institute for Transportation, Iowa State University $c 2014 300 $a ix, 27 pages (39 pages in PDF file) $b Illustrations, charts, photographs (chiefly color) 536 $a Performed by Iowa State University, Institute for Transportation $c InTrans Project 13-481 536 $a Sponsored by Iowa Department of Transportation $c TR-666 536 $a Sponsored by Iowa Highway Research Board $c TR-666 536 $a Sponsored by Federal Highway Administration 500 $a "December 2014" -- Technical Documentation Page 504 $a Includes bibliographical references (page 27) 520 3 $a In reinforced concrete systems, ensuring that a good bond between the concrete and the embedded reinforcing steel is critical to long-term structural performance. Without good bond between the two, the system simply cannot behave as intended. The bond strength of reinforcing bars is a complex interaction between localized deformations, chemical adhesion, and other factors. Coating of reinforcing bars, although sometimes debated, has been commonly found to be an effective way to delay the initiation of corrosion in reinforced concrete systems. For many years, the standard practice has been to coat reinforcing steel with an epoxy coating, which provides a barrier between the steel and the corrosive elements of water, air, and chloride ions. Recently, there has been an industry-led effort to use galvanizing to provide the protective barrier commonly provided by traditional epoxy coatings. However, as with any new structural product, questions exist regarding both the structural performance and corrosion resistance of the system. In the fall of 2013, Buchanan County, Iowa constructed a demonstration bridge in which the steel girders and all internal reinforcing steel were galvanized. The work completed in this project sought to understand the structural performance of galvanized reinforcing steel as compared to epoxy-coated steel and to initiate a long-term corrosion monitoring program. This work consisted of a series of controlled laboratory tests and the installation of a corrosion monitoring system that can be observed for years in the future. The results of this work indicate there is no appreciable difference between the bond strength of epoxy-coated reinforcing steel and galvanized reinforcing steel. Although some differences were observed, no notable difference in either peak load, slip, or failure mode could be identified. Additionally, a long-term monitoring system was installed in this Buchanan County bridge and, to date, no corrosion activity has been identified. 516 $a Text file in PDF format. 538 $a System requirements: Adobe Acrobat Reader, Adobe Acrobat, or other PDF reader. 538 $a Mode of access: World Wide Web 513 $a Final Report 650 0 $a Concrete bridges $x Design and construction. 650 07 $a Bonding and joining $2 trt 650 07 $a Bond strength $2 trt 650 07 $a Epoxy coatings $2 trt 650 07 $a Galvanized metals $2 trt 650 07 $a Portland cement concrete $2 trt 650 07 $a Reinforced concrete bridges $2 trt 651 0 $a Buchanan County (Iowa) 700 1 $a Lee, Yoon-Si $e author $u Bradley University 700 1 $a Keierleber, Brian $e author $u Buchanan County, Iowa 700 1 $a Hupp, Jack $e author $u Iowa State University 700 1 $a Samudrala, Anurag $e author $u Iowa State University 710 2 $a Iowa State University. $b Bridge Engineering Center, $b Bridge Engineering Center, $e performing body. 710 1 $a Iowa. $b Department of Transportation, $e sponsoring body. 710 1 $a Iowa. $b Highway Research Board, $e sponsoring body. 856 40 $a Iowa Publications Online $3 Online access. $z Full report $u http://publications.iowa.gov/id/eprint/18412 856 42 $a Iowa Publications Online $3 Online access. $z Tech transfer summary $u http://publications.iowa.gov/id/eprint/18412 856 40 $a Digital Repository @ Iowa State University $3 Online access. $z Full report $u http://lib.dr.iastate.edu/intrans_reports/77/ 856 42 $a Digital Repository @ Iowa State University $3 Online access. $z Tech Transfer summary $u http://lib.dr.iastate.edu/intrans_techtransfer/42/ 941 $a 1 952 $l IAOX771 $d 20240710103022.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=F2474FD8B7CA11EC864CB83724ECA4DB 994 $a C0 $b UIGInitiate Another SILO Locator Search