Low-Cement Concrete Mixture for Bridge Decks and Rails

Early-age cracking of concrete bridge decks and rails accelerates the penetration of water and chemicals into the concrete, which leads to reinforcement corrosion, delamination, and eventually spalling. This common deterioration problem results in shorter service life, road closures, and costly repairs/replacements. The early-age cracking of concrete decks and rails is primarily attributed to the drying shrinkage of restrained concrete immediately after construction. Concrete mixture design and curing procedure are key factors in reducing drying shrinkage and, consequently, early-age cracking.

Language

• English

Project

• Status: Completed
• Funding: $112,394.00
• Sponsor Organizations:

  Nebraska Department of Transportation

  1500 Nebraska 2
  Lincoln, NE  United States  68502
• Project Managers:

  Halsey, Lieska

• Principal Investigators:

  Hu, Jiong

  Morcous, George

• Start Date: 20210701
• Expected Completion Date: 20230930
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Admixtures; Bridge decks; Cement content; Cracking of concrete pavements; Deterioration; Drying rate; Mix design; Shrinkage
• Subject Areas: Bridges and other structures; Construction; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01769358
• Record Type: Research project
• Source Agency: Nebraska Department of Transportation
• Files: RIP, STATEDOT
• Created Date: Apr 12 2021 11:40AM