Optimization of Advanced Cementitious Material for Bridge Deck Overlays and Upgrade, Including Shotcrete

Deterioration of bridge deck is a major issue for bridge owners. The need for cost-effective and durable rehabilitation methods has been documented by many researchers. The primary causes of deck deterioration include vehicle traffic, environmental effects (i.e. freeze-thaw, salt spray), and maintenance practices (snow plows, de-icing chemical treatments). Deterioration is featured by delamination, cracking, corrosion of reinforcing steel, abrasion, scaling, and other mechanisms. Ultra-High strength concrete (UHPC) overlays are gaining in popularity as a rehabilitation material due to the high compressive strength, higher tensile capacity compared to normal strength concrete, low permeability, and low shrinkage. UHPC also has a high early strength that allows for reduced lane closure and construction time. Current research has shown that UHPC bonds well to normal strength concrete, both in direct tension test and shear test. Shrinkage stresses do not appear to be a significant design concern either. UHPC has also been shown to mitigate corrosion activity.

Language

  • English

Project

  • Status: Active
  • Funding: $105000
  • Contract Numbers:

    69A3551747121

  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    Accelerated Bridge Construction University Transportation Center (ABC-UTC)

    Florida International University
    10555 W. Flagler Street
    Miami, FL  United States  33174

    Florida International University, Miami

    University Park, Room P.C. 539
    Miami, FL  United States  33199-0000
  • Performing Organizations:

    Accelerated Bridge Construction University Transportation Center (ABC-UTC)

    Florida International University
    10555 W. Flagler Street
    Miami, FL  United States  33174
  • Principal Investigators:

    Mantawy, Islam

  • Start Date: 20190601
  • Expected Completion Date: 20200930
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01700425
  • Record Type: Research project
  • Source Agency: Accelerated Bridge Construction University Transportation Center (ABC-UTC)
  • Contract Numbers: 69A3551747121
  • Files: UTC, RiP
  • Created Date: Mar 28 2019 5:09PM