Concrete Pavement Mixtures with High Supplementary Cementitious Materials Content: Volume 3

Fly ash is a by-product of coal combustion, made up of particles that are collected through various methods. This by-product has been used successfully as a partial Portland cement replacement in concrete, but the performance predictions of fly ash in concrete have been difficult to predict, especially at high fly ash replacement rates. This study focuses on comparing the performance of concrete with a variety of fly ash mixtures as well as the particle distribution and chemical makeup of fly ash. The slump, unit weight, compressive strength, and isothermal calorimetry tests were used to measure the performance of concrete at 0%, 20%, and 40% fly ash replacement levels. The particle distribution of fly ash was measured with an automated scanning electron microscope. Additionally, the major and minor oxides from the chemical makeup of fly ash were measured for each mixture and inputted into a table. The particle distribution and chemical makeup of fly ash were compared to the performance of slump, unit weight, compressive strength, isothermal calorimetry, and surface electrical resistivity.

• Record URL:
  https://doi.org/10.36501/0197-9191/21-032
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/58613
• Corporate Authors:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Illinois Department of Transportation

  Bureau of Research
  126 East Ash Street
  Springfield, IL  United States  62704

  Illinois Center for Transportation

  205 North Mathews Avenue, MC-250
  Urbana, IL  United States  61801
• Authors:
  • Ley, M Tyler
  • Lloyd, Zane
  • Kang, Shinhyu
  • 0000-0001-6733-0109
  • Cook, Dan
• Publication Date: 2021-9

Language

• English

Media Info

• Media Type: Web
• Edition: Final Report
• Features: Figures; References; Tables;
• Pagination: 32p

Subject/Index Terms

• TRT Terms: Cement; Concrete; Fly ash; Mixtures; Paving materials
• Subject Areas: Highways; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 01781762
• Record Type: Publication
• Report/Paper Numbers: FHWA-ICT-21-027, ICT-21-032, UILU-2021-2032
• Contract Numbers: R27-180
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Sep 20 2021 2:52PM