Alkali–aggregate Reaction in Activated Fly Ash Systems

Certain aspects of the durability of a new cementitious material, alkali-activated fly ash, are addressed in this paper; specifically, a series of findings relating to the alkali-silica reaction are reported. The approach adopted in the study was to compare the new cementitious systems to analogous Portland cement mortars using aggregates of differing reactivity and a procedure based on the test described in ASTM standard C 1260. Results of SEM/EDX and XRD analysis of the materials showed that activated fly ash mortars performed better than the Portland cement equivalents.

• Record URL:
  https://doi.org/10.1016/j.cemconres.2006.11.002
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Supplemental Notes:
  • Abstract reprinted with permission from Elsevier
• Authors:
  • Garcia-Lodeiro, I
  • Palomo, A
  • Fernandez-Jimenez, A
• Publication Date: 2007-2

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 175-183
• Serial:
  • Cement and Concrete Research
  • Volume: 37
  • Issue Number: 2
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Alkali aggregate reactions; Cement; Cement additives; Cement mortars; Concrete construction; Durability; Fly ash; Portland cement concrete
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01046619
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 5 2007 12:38AM