Investigations of plastic composite materials for highway safety structures
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Investigations of plastic composite materials for highway safety structures

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    • Creators:
      Dutta, Piyush K.
    • Corporate Contributors:
      Cold Regions Research and Engineering Laboratory (U.S.)
    • Subject/TRT Terms:
    • Publication/ Report Number:
      FHWA-RD-98-060;CRREL Report 98-7
    • Resource Type:
      Research Paper
    • TRIS Online Accession Number:
      754918
    • Corporate Publisher:
      Cold Regions Research and Engineering Laboratory (U.S.)
    • NTL Classification:
      NTL-HIGHWAY/ROAD TRANSPORTATION-HIGHWAY/ROAD TRANSPORTATION;NTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and Structures;NTL-HIGHWAY/ROAD TRANSPORTATION-Design;NTL-HIGHWAY/ROAD TRANSPORTATION-Materials;AGR-SAFETY AND SECURITY-SAFETY AND SECURITY;
    • Abstract:
      This report presents a basic overview and assessment of different concepts and technologies of using polymer composites in structures generally used for highway safety. The structural systems included a highway barrier guardrail with its posts and blockouts, sign posts, concrete reinforcing rebars, breakaway couplers, and crushable plastic cushions to protect errant drivers from roadside sign and utility posts, and small trees. The composites included fiber reinforced plastics (FRP) in laminated and bar forms, and commercially available recycled and reconstituted structural plastic composites. Commercially available FRP composites, recycled plastic composites, and several conceptual designs and prototype components were assessed and tested. The results showed many potential advantages of using composites in almost all the structures considered, but one-to-one replacement of conventional materials was not always found attractive. For deriving maximum benefits from fiber composites, the basic performance of the given structures should be reassessed and then composites should be designed at the materials level using innovative fiber architecture and appropriate manufacturing technologies that can meet those performance requirements.
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