MICROSTRUCTURAL DEVELOPMENT OF STABILIZED FLY ASH AS PAVEMENT BASE MATERIAL

Microstructural, chemical, mineralogical, and thermal analysis was carried out in a study to use Eraring Power Station (New South Wales, Australia) fly ash as pavement base material. The fly ash was stabilized with cement and lime separately. The effects of cement and lime stabilization were examined in terms of chemical composition, crystalline structures, and hydration products. Unconfined compressive strength of samples was also measured to observe the effect of stabilization over time. The results obtained from cement and lime-stabilized samples showed that the hydration products that account for strength gain of the stabilized fly ash are almost the same for both types of stabilizing agents. The discrepancies between the resulting strengths are due to the proportion and density of these products.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Lav, A H
  • Lav, M A
• Publication Date: 2000-5

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 157-163
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 12
  • Issue Number: 2
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Base course (Pavements); Cement; Chemical analysis; Compressive strength; Crystallization; Diffraction; Fly ash; Hydrates; Hydration; Lime fly ash; Microstructure; Mineralogy; Pavements; Pozzolanic action; Spectrometers; Stabilized materials; Strength of materials; Tests; Thermal analysis; Waste products (Materials); X ray fluorescence
• Geographic Terms: Australia; New South Wales
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00794099
• Record Type: Publication
• Contract Numbers: NSF-G-CMS-9601262, GR/J 85554
• Files: TRIS
• Created Date: Jun 26 2000 12:00AM