FLY ASH EFFECTS: III. THE MICROAGGREGATE EFFECT OF FLY ASH

Unreacted fly ash particle can still contribute to the properties of cement stone; this is known as the microaggregate effect of fly ash. In this article, the authors report on a systematic study of the microaggregate effects of fly ash; the study includes micromechanics, the hypothesis of center particle and pore size distribution. The authors note that the microaggregate effect is strengthened with the increase of content of fly ash, but weakened with age. From the micromechanics viewpoint, the volume fraction of microaggregate decreases with age because of the pozzolanic reaction of fly ash. In the center particle hypothesis, the center particle becomes smaller because of the pozzolanic reaction of fly ash and the space of center particle increases.

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• Corporate Authors:

  Elsevier

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• Authors:
  • Wang, A
  • Zhang, Chunbo
  • Sun, Weichen
• Publication Date: 2004-11

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 2061-2066
• Serial:
  • Cement and Concrete Research
  • Volume: 34
  • Issue Number: 11
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Concrete curing; Fly ash; Microstructure; Mortar; Pore size distribution; Pozzolanic action
• Uncontrolled Terms: Microaggregate effect
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00986477
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 8 2005 12:00AM