Bridge Low Slump Concrete Overlay Mix Design for Mobile Mixers

Low slump overlays are an important technique to extend the life of bridge decks. The mixture for low slump overlays has not changed in the last 30 years and shows extensive cracking within a few years of placement. The objective of this project is to minimize the cracking in low slump concrete overlays for mixtures placed with a volumetric mixer. These mixtures need to obtain a low permeability in the NT Build 492 and achieve a 28 day compressive strength of 4000 psi. The objectives of the research include: (i) Reviewing mixture designs and specifications from other states; (ii) Examining the most promising mixtures and documenting their performance; (iii) Implementing the most promising mixtures on a field project and documenting their performance

Language

• English

Project

• Status: Active
• Funding: $271612
• Contract Numbers:

  1036339 WO#1

• Sponsor Organizations:

  Minnesota Department of Transportation

  395 John Ireland Boulevard
  St Paul, MN  United States  55155
• Performing Organizations:

  Oklahoma State University, Stillwater

  School of Civil & Environmental Engineering
  Stillwater, OK  United States  74078
• Principal Investigators:

  Ley, Tyler

• Start Date: 20210727
• Expected Completion Date: 20250630
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Bridge decks; Bridges; Concrete overlays; Cracking of concrete pavements; Mix design; Preventive maintenance
• Subject Areas: Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 01762347
• Record Type: Research project
• Source Agency: Minnesota Department of Transportation
• Contract Numbers: 1036339 WO#1
• Files: RIP, STATEDOT
• Created Date: Jan 19 2021 3:01PM