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03026aam a2200445Kc 4500 001 F4E83A68B7CA11EC864CB83724ECA4DB 003 SILO 005 20220409010100 008 151007s2001 iauaod fst s000 0 eng d 035 $a (OCoLC)922993649 040 $a UIG $b eng $e rda $c UIG $d SILO 088 $a Iowa DOT Project MLR-86-4 100 1 $a Adam, John F., $e author. $u Iowa Department of Transportation. 245 10 $a Performance of Poly-Carb, Inc. Flexogrid Bridge Overlay System $c John F. Adam, Elijah Gansen 264 1 $a Ames, Iowa $b Iowa Department of Transportation $c 2001 300 $a 10 pages (14 pages in PDF file) $b illustrations, photographs, charts 500 $a December 2001 -- Technical Report Title Page 513 $a Final Report 516 $a Text file in PDF format. 520 3 $a Intrusion of deicing materials and surface water into concrete bridge decks is a main contributor in deck reinforcing steel corrosion and concrete delamination. Salt, spread on bridge decks to melt ice, dissolves in water and permeates voids in the concrete deck. When the chloride content of the concrete in contact with reinforcing steel reaches a high enough concentration, the steel oxidizes. In Iowa, the method used to reduce bridge deck chloride penetration is the application of a low slump dense concrete overlay after the completion of all Class A and Class B floor repairs. A possible alternative to the use of dense concrete overlays, developed by Poly-Carb, Inc., is the MARK-163 FLEXOGRID Overlay System. FLEXOGRID is a two component system of epoxy and urethane which is applied on a bridge deck to a minimum thickness of 1/4 inch. An aggregate mixture of silica quartz and aluminum oxide is broadcast onto the epoxy at a prescribed rate to provide deck protection and superior friction properties. The material is mixed on site and applied to the deck in a series of lifts (usually two) until the desired overlay thickness has been attained. 536 $a Sponsored by the Iowa Department of Transportation $c Iowa DOT Project MLR-86-04 538 $a System requirements: Adobe Acrobat, Adobe Acrobat Reader, or other PDF reading software. 538 $a Mode of access: World Wide Web. 650 0 $a Bridges $z Iowa $x Floors. 650 07 $a Aggregate mixtures $2 trt 650 07 $a Bridge decks $2 trt 650 07 $a Chloride content $2 trt 650 07 $a Corrosion $2 trt 650 07 $a Deicing $2 trt 650 07 $a Deicing chemicals $2 trt 650 07 $a Delamination $2 trt 650 07 $a Overlays (Pavements) $2 trt 650 07 $a Reinforcement (Engineering) $2 trt 700 1 $a Gansen, Elijah, $e author. $u Iowa Department of Transportation. 710 1 $a Iowa. $b Department of Transportation, $e sponsoring body. 856 40 $a Iowa Publications Online $3 Full text available from Iowa Publications Online $u http://publications.iowa.gov/id/eprint/19940 941 $a 1 952 $l IAOX771 $d 20240710103135.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=F4E83A68B7CA11EC864CB83724ECA4DB 994 $a C0 $b UIGInitiate Another SILO Locator Search