Characterizing Fly Ash

Although fly ash can and typically does impart benefits to concrete, several technical and practical issues must still be addressed. First, all fly ashes are not created equally. The chemical/mineralogical/ physical properties can vary significantly from one source to another, based on differences in fuel sources (coal), combustion conditions, and cooling regimes. Furthermore, the fly ash industry is quite dynamic and is rapidly changing due to recently imposed environmental regulations. As such, fly ash produced from a given power plant may be considerably different than fly ash produced from the same plant just a few years ago. Therefore, it is becoming increasingly important to be able to characterize fly ash in a way that best predicts how it will perform in concrete. This is the primary focus of this project.

• Record URL:
  http://library.ctr.utexas.edu/ctr-publications/0-6648-1.pdf
• 
• Summary URL:
  https://library.ctr.utexas.edu/Presto/catalogid=31817
• Supplemental Notes:
  • Project Title: Characterizing Class C Fly Ashes for Alkali Silica Reaction Mitigation Effectiveness. Report Date: November 2012; Published: August 2013.
• Corporate Authors:

  University of Texas, Austin

  Center for Transportation Research, 1616 Guadalupe Street
  Austin, TX  United States  78701-1255

  Texas Department of Transportation

  Research and Technology Implementation Office, P.O. Box 5080
  Austin, TX  United States  78763-5080

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Kruse, Karla
  • Jasso, Andres
  • Folliard, Kevin
  • Ferron, Raissa
  • Juenger, Maria
  • Drimalas, Thano
• Publication Date: 2013-8

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Technical Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 172p

Subject/Index Terms

• TRT Terms: Alkali silica reactions; Classification; Concrete; Durability tests; Fly ash; Laboratory studies; Performance tests; Sulfates
• Geographic Terms: Texas
• Subject Areas: Highways; Materials; I32: Concrete; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 01491393
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-13/0-6648-1, 0-6648-1
• Contract Numbers: 0-6648
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Sep 3 2013 12:24PM