INCORPORATION OF V, ZN AND PB INTO THE CRYSTALLINE PHASES OF PORTLAND CLINKER

Burning of industrial wastes in cement kilns has an increasing environmental importance, brought about by the incorporation of potentially hazardous elements into clinker crystalline phases and partial substitution of primary fuel and raw materials. This article reports on a study in which experimental clinkers were synthesized, with the addition of V, Zn and Pb to a standard raw meal, from which a control clinker was obtained for comparison. These three metals were chosen because they are present in the alternative fuel petcoke (V) and in industrial wastes (Zn, Pb) commonly burned in cement kilns. Electron microprobe and scanning electron microscope analysis revealed the preferential partition of these metals among the clinker crystalline phases. The authors conclude that that recognition that V, Zn, and Pb are retained in crystal structures of clinker phases, mostly as solid solutions, is a favorable environmental aspect.

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    Elsevier

    The Boulevard, Langford Lane
    Kidlington, Oxford  United Kingdom  OX5 1GB
  • Authors:
    • Andrade, FRD
    • Maringolo, V
    • Kihara, Y
  • Publication Date: 2003-1

Language

  • English

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Filing Info

  • Accession Number: 00986459
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 8 2005 12:00AM