L'alteration naturelle des scories de la metallurgie ancienne : un analogue de déchets vitrifiés

C. Le Carlier Mahe and Christian Le Carlier de Veslud and A. Ploquin and Jean-Jacques Royer. ( 2000 )
in: Comptes Rendus de l'Academie des Sciences de Paris, 330 (179--184)

Abstract

The study of the natural alteration of ancient vitreous slags (100 to 4 000 years) suggests a single global mechanism. In a first stage, weathering consists of a selective extraction of the modifier cations of glass (including Pb and Ba). This phenomenon is associated with an increase of the solution pH, inducing the glass dissolution. The elements with a weak limit of solubility remain in place and can form hydroxides (Al, Fe). Pb and Ba are extracted from weathered glass. Pb is located in Fe-hydroxides, Ba may form sulfides. The rate of alteration varies from 20 to 180 μm per 1 000 years.

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    BibTeX Reference

    @ARTICLE{,
        author = { Le Carlier Mahe, C. and Le Carlier de Veslud, Christian and Ploquin, A. and Royer, Jean-Jacques },
         title = { L'alteration naturelle des scories de la metallurgie ancienne : un analogue de déchets vitrifiés },
       journal = { Comptes Rendus de l'Academie des Sciences de Paris },
        volume = { 330 },
       chapter = { 0 },
          year = { 2000 },
         pages = { 179--184 },
      abstract = { The study of the natural alteration of ancient vitreous slags (100 to 4 000 years) suggests a single global mechanism. In a first stage, weathering consists of a selective extraction of the modifier cations of glass (including Pb and Ba). This phenomenon is associated with an increase of the solution pH, inducing the glass dissolution. The elements with a weak limit of solubility remain in place and can form hydroxides (Al, Fe). Pb and Ba are extracted from weathered glass. Pb is located in Fe-hydroxides, Ba may form sulfides. The rate of alteration varies from 20 to 180 μm per 1 000 years. }
    }