Sources and Substitutes for Fly Ash in ADOT Concrete Mixes

The Department has been using fly ash, a pozzolanic material, in concrete mixes for more than 50 years. While not cementitious themselves, pozzolans act as a cementitious catalyst when moisture is added at ordinary temperatures. Because future supplies and cost of fly ash are uncertain, the Department would like to be prepared with acceptable and cost-efficient alternative pozzolans for use in concrete mix designs for highway construction. This proposed research would not anticipate eliminating the use of fly ash, but would simply identify alternatives.

Language

• English

Project

• Status: Active
• Funding: $125,000
• Contract Numbers:

  SPR-780

• Sponsor Organizations:

  Arizona Department of Transportation Research Center

  206 S. 17th Avenue
  ADOT Research Center
  Phoenix, AZ  United States  85007
• Managing Organizations:

  Arizona Department of Transportation Research Center

  206 S. 17th Avenue
  ADOT Research Center
  Phoenix, AZ  United States  85007
• Project Managers:

  Stone, William

• Performing Organizations:

  Arizona State University, Tempe

  Tempe, AZ  United States 
• Principal Investigators:

  Mobasher, Barzin

• Start Date: 20230213
• Expected Completion Date: 20240614
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Admixtures; Fly ash
• Geographic Terms: Arizona
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 01831510
• Record Type: Research project
• Source Agency: Arizona Department of Transportation
• Contract Numbers: SPR-780
• Files: RIP, STATEDOT
• Created Date: Dec 22 2021 7:24PM