A STUDY OF CEMENT HYDRATION IN THE PRESENCE OF ZINC: THE INFLUENCE OF GYPSUM CONTENT

ETUDE DE L'HYDRATION DU CIMENT EN PRESENCE DE ZINC INFLUENCE DE LA TENEUR EN GYPSE

Cement paste hydration is delayed by zinc which changes fundamental hydrates forming a thin layer of amorphous zinc hydroxyde around anhydrous particles. Evolution of this compound depends on pore solution composition of cement paste. In this paper, the authors study the influence of the amount of sulfate. Samples of the cement paste are prepared by adding increasing amounts of gypsum. With small proportions of sulfate, C3A hydration is accelerated by zinc. However, if sulphate content is greater than 2.5%, zinc delays C3A hydration. C3S hydration is always delayed. With 4% in sulphate content, setting does not occur at all.

• 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:
  • Arliguie, G
  • GRANDET, J
• Publication Date: 1990-5

Language

• English

Media Info

• Pagination: p. 346-354
• Serial:
  • Cement and Concrete Research
  • Volume: 20
  • Issue Number: 3
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Cement paste; Gypsum; Hydration; Setting (Concrete); Sulfates; Zinc
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 00606932
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Mar 31 1991 12:00AM