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.
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Corporate Authors:
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590Illinois Department of Transportation
Bureau of Research
126 East Ash Street
Springfield, IL United States 62704Illinois 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