INFLUENCE OF CHEMICAL AND PHYSICAL PROPERTIES OF ITALIAN FLY ASHES ON REACTIVITY TOWARDS LIME, PHOSPHOGYPSUM AND WATER

The behaviour of five Italian fly ashes in mixtures with lime, phosphogypsum and water has been investigated at 25 and 40 deg C using a composition ratio fly ash:lime:phosphogypsum of 60:40:20. The experimental results have shown that particle size distribution mainly influences fly ash reactivity at early ages, while chemical composition and amorphous phase content play a prevailing role at later ages. The reaction products, calcium trisulphoaluminate and silicate hydrates, make these systems interesting in the field of building materials. (TRRL)o

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Valenti, G L
  • Cioffi, R
  • Santoro, L
  • Ranchetti, S
• Publication Date: 1988-1

Media Info

• Features: References;
• Pagination: p. 91-102
• Serial:
  • Cement and Concrete Research
  • Volume: 18
  • Issue Number: 1
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Calcium oxide; Chemical properties; Chemical reactivity; Fly ash; Physical properties; Water
• Uncontrolled Terms: Particle size distribution; Phosphogypsum
• ITRD Terms: 4563: By product; 7165: Chemistry; 4580: Fly ash; 8051: Italy; 4574: Lime; 6200: Particle size distribution; 7330: Phosphoric acid; 5925: Properties; 7156: Reaction (chem); 7152: Thermal analysis
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00480024
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Mar 31 1989 12:00AM