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  • Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker
    Dolenec, Sabina ...
    Fly ash and phosphogypsum were used as Naturally Occurring Radioactive Materials (NORM) by%products for the synthesis of belite-sulfoaluminate clinkers. The influence of raw mixture composition and ... firing temperature was investigated. Clinkers and cements were examined by X%ray powder diffraction and scanning electron microscopy with energy dispersive X%ray spectroscopy. The compressive strength of the cements was determined after 28 days. Clinker phases identified included ye%elimite, ß%phase of belite, ternesite and gehlenite, while the main hydration product of the cement pastes was ettringite. The results showed that belite-sulfoaluminate cements can be fabricated with a compressive strength of 45.9 N/mm2 by firing the raw mixture (70 wt.% marl, 10 wt.% bauxite and 20 wt.% phosphogypsum) at a temperature of 1320°C/1h.
    Source: Materiales de construcción. - ISSN 0465-2746 (Vol. 69, iss. 333, 2019, str. 1-12)
    Type of material - e-article ; adult, serious
    Publish date - 2019
    Language - english
    COBISS.SI-ID - 2428775

    Link(s):

    http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2242
    DiRROS - Digital repository of Slovenian research organizations
    DOI

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