Evaluation of Concrete Bridge Deck Mixtures Using Shrinkage-Ring Tests

The aim of this document is to evaluate and compare concrete mixture designs using a granitic aggregate and employing mitigation measures. Specific measures include polypropylene fibers and shrinkage reducing admixture (SRA). Four different mixture designs were evaluated: control, addition of 8 lb/yd3 (4.75 kg/m3) of polypropylene fibers, dosage of 2% SRA by weight of cementitious material, and the combination of both mitigation methods. Two experimental approaches were carried out to assess restrained shrinkage: single-ring and dual-ring. Mechanical properties such as compressive and tensile strength were studied for each mixture. Results indicated that incorporating fibers into the mixture roughly doubles the time to cracking. Adding SRA into the mix increased the cracking age by 90%. The combination of 8 lb/yd3 (4.75 kg/m3) of fibers with 2% of SRA replacement proved to be the most effective measure for extending cracking time—improving it by an average of five times the original cracking.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=1107
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/65831
• Summary URL:
  https://rosap.ntl.bts.gov/view/dot/65832
• Supplemental Notes:
  • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  University of Wyoming, Laramie

  Department of Civil & Architectural Engineering and Construction Management
  Laramie, WY  United States 

  University of Wyoming, Laramie

  Department of Mathematics & Statistics
  Laramie, WY  United States 

  Mountain-Plains Consortium

  North Dakota State University
  Fargo, ND  United States  58108

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Authors:
  • Tanner, Jennifer
  • Buenfil, Shamel Perez
• Publication Date: 2023-12

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 44p

Subject/Index Terms

• TRT Terms: Admixtures; Bridge decks; Bridge management systems; Cracking; Shrinkage
• Geographic Terms: Wyoming
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 01868617
• Record Type: Publication
• Report/Paper Numbers: MPC 22-483
• Contract Numbers: MPC-652
• Files: UTC, NTL, TRIS, ATRI, USDOT
• Created Date: Dec 27 2022 2:40PM