Thin Polymer Concrete Bridge Deck Overlays and the Brooklyn Bridge PDF Download
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Author: E. J. Scarpinato
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 28
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Book Description
Author: E. J. Scarpinato
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 28
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Book Description
Author: David W. Fowler
Publisher: Transportation Research Board
ISBN: 0309143543
Category : Technology & Engineering
Languages : en
Pages : 75
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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 423: Long-Term Performance of Polymer Concrete for Bridge Decks addresses a number of topics related to thin polymer overlays (TPOs). Those topics include previous research, specifications, and procedures on TPOs; performance of TPOs based on field applications; the primary factors that influence TPO performance; current construction guidelines for TPOs related to surface preparation, mixing and placement, consolidation, finishing, and curing; repair procedures; factors that influence the performance of overlays, including life-cycle cost, benefits and costs, bridge deck condition, service life extension, and performance; and successes and failures of TPOs, including reasons for both.
Author: Brian A. Pfeifer
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 60
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Author: DeWayne L. Wilson
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages :
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Book Description
This report summarizes the Washington State Department of Transportation's (WSDOT's) 10 years of experience with "epoxy" and "methyl methacrylate" (MMA) thin polymer bridge deck overlays. WSDOT uses a modified concrete as its primary type of bridge deck overlay, but in some cases a bridge's physical characteristics, such as lightweight design or narrow roadway width, will not allow using a modified concrete overlay. Thin polymer overlays provide an alternative. Thin polymer overlays offer more rapid construction, curing in 4 to 8 hours compared to 42 hours for a modified concrete overlay. Thin polymer overlays are lightweight (due to their 3/8 in. thickness, approximately 5 lb/SF versus 19 lb/SF for a modified concrete overlay and are generally less labor intensive and require less specialized equipment than a modified concrete overlay.
Author: Timothy L. Ramirez
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 134
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Book Description
Author: Steven M. Soltesz
Publisher:
ISBN:
Category : Asphalt concrete
Languages : en
Pages : 80
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Book Description
Eight thin polymer overlay systems were evaluated in the laboratory and on two bridge decks exposed to trucks and passenger vehicles including those with studded tires. The products were Mark 154, Flex-O-Lith, Safetrack HW, Kwik Bond PPC MLS, Tyregrip, SafeLane HDX, Urefast PF60, and Unitex ProPoxyType III DOT. None of the overlay systems showed superior performance under moderate average daily traffic from the standpoint of maintaining good skid resistance and resisting wear through. Tyregrip and Safetrack HW started to wear through to the concrete after exposure of approximately 1.3 million vehicles, and Urefast PF60 wore through much sooner. For the five products that did not wear through, empirical equations predicted the friction number of the best of these five products would decrease to 40 (equivalent to the friction number of the concrete) within five months at a traffic level of 10,000 vehicles per lane per day. Delamination from the concrete was not a major problem with the products. Laboratory tests were not able to predict performance.
Author:
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 2
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 133
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Book Description
Author: Michael E. Doody
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 40
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Author:
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 294
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