Long-Term Performance of Epoxy-Filled Grate Steel Decking

Open bridge steel deck systems filled with lightweight materials are subjected to various environmental degradations over their service life. Some of those are thermal effects, moisture, alkaline exposure, mechanical or fatigue and ultraviolet radiation. The lightweight materials and steel behave differently under these conditions due to dissimilar physical and mechanical properties. The objective of this research was to address the performance of the filled steel deck systems, and effect of repetitive thermal loads (temperatures below and above normal ambient conditions) to the open steel grid deck systems that were filled with epoxy resin. The deck systems filled with epoxy materials were subjected to thermal change to simulate similar or extreme field conditions. Experimental results found that the performance of the open filled decks were depends on the weather loads. Under high temperatures exposure the interfacial region showed severe delamination compared to low temperature exposure. Also the study found that the performance at the interfacial region was affected by the number of cycles for both low and high temperatures.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Akaro, Cathbert
  • Mtenga, Primus V
  • Ansley, Marcus H
• Conference:
  • Transportation Research Board 86th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2007-1-21 to 2007-1-25
• Date: 2007

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; Photos; References;
• Pagination: 24p
• Monograph Title: TRB 86th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

• TRT Terms: Bridge decks; Degradation failures; Epoxy resins; Fatigue (Mechanics); Lightweight materials; Mechanical properties; Moisture content; Service life; Steel; Steel structures; Temperature
• Uncontrolled Terms: Long term performance
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01046026
• Record Type: Publication
• Report/Paper Numbers: 07-1223
• Files: TRIS, TRB
• Created Date: Feb 8 2007 5:50PM