Investigating Bond and Flexural Performance of Thin Bonded Engineered Cementitious Composite Overlay for Concrete Bridge Decks

Resilient and durable overlays are critical for enhancing the service life of bridge decks by shielding them against harmful effects of water, chemicals, and abrasion. Currently, polymer concrete overlays are widely employed for bridge decks. Polymer concrete overlays outperform conventional concrete topping overlays. However, instances of polymer concrete overlay debonding have been encountered. Moreover, polymer concrete overlays utilize proprietary materials and are costly in price. A new class of material, Engineered Cementitious Composite (ECC) is emerging as a promising bridge-deck overlay material owing to its ultra ductile tensile crack-resistance, lower elastic modulus, and high durability characteristics. ECC overlays can provide a lightweight, cost-effective, and sustainable solution for rehabilitating and protecting bridge decks. The overarching goal of this study is to develop a comprehensive understanding on the behavior of ECC as an overlay material. The primary objectives of the study are to develop and characterize non-proprietary ECC mixture suitable for overlay applications, evaluate and compare the strength, shrinkage, and bond characteristics of ECC with other polymer and cementitious (UHPC) overlays, and to assess the flexural performance of overlay-substrate system by testing representative slabs with ECC, polymer, and UHPC overlay materials.

• Record URL:
  https://www.ctips.org/projects/details.php?id=629

Language

• English

Project

• Status: Active
• Funding: $188454
• Contract Numbers:

  69A3552348308

• 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:

  Center for Transformative Infrastructure Preservation and Sustainability

  North Dakota State University
  Fargo, North Dakota  United States  58108-6050
• Project Managers:

  Tolliver, Denver

• Performing Organizations:

  Utah State University

  Civil and Environmental Engineering Department
  Logan, UT  United States 
• Principal Investigators:

  Banerji, Srishti

• Start Date: 20240915
• Expected Completion Date: 20260914
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program
• Source Data: CTIPS-031

Subject/Index Terms

• TRT Terms: Bridge decks; Cement; Composite materials; Overlays (Pavements)
• Subject Areas: Bridges and other structures; Construction; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 01931879
• Record Type: Research project
• Source Agency: Center for Transformative Infrastructure Preservation and Sustainability
• Contract Numbers: 69A3552348308
• Files: UTC, RIP
• Created Date: Sep 25 2024 4:32PM