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Natural fluorapatite as a raw material for Portland clinker.

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Title: Natural fluorapatite as a raw material for Portland clinker.
Authors: Boughanmi, Sonia1, Labidi, Islem1, Megriche, Adel1, El Maaoui, Mohamed1, Nonat, André2 andre.nonat@u-bourgogne.fr
Source: Cement & Concrete Research. Mar2018, Vol. 105, p72-80. 9p.
Subjects: Fluorapatite, Clinker brick, Portland cement industry, X-ray diffraction, Microcalorimetry
Abstract: The present work focuses on the mineralogy and the reactivity of clinkers made from the integration of natural fluorapatite in the raw meals with percentages ranging from 0 up to15%. The samples were characterized by infrared spectrometry, X-ray diffraction and microscopy techniques. The distribution of phosphorous and fluorine into clinkers minerals was determined by MEB/EDS mapping. The mineralogical composition was determined by XRD/Rietveld and the samples reactivity followed by isothermal microcalorimetry. It has been found that fluorine stabilizes C 3 S and β-C 2 S which still are found with high levels of P 2 O 5 . Cements obtained from up to 8% natural fluorapatite incorporation still present acceptable properties. Natural fluorapatite could have an important potential as decarbonised source of CaO contributing to decrease the CO 2 emission in cement industry. [ABSTRACT FROM AUTHOR]
Copyright of Cement & Concrete Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: <searchLink fieldCode="AR" term="%22Boughanmi%2C+Sonia%22">Boughanmi, Sonia</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Labidi%2C+Islem%22">Labidi, Islem</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Megriche%2C+Adel%22">Megriche, Adel</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22El+Maaoui%2C+Mohamed%22">El Maaoui, Mohamed</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Nonat%2C+André%22">Nonat, André</searchLink><relatesTo>2</relatesTo><i> andre.nonat@u-bourgogne.fr</i>
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  Data: <searchLink fieldCode="DE" term="%22Fluorapatite%22">Fluorapatite</searchLink><br /><searchLink fieldCode="DE" term="%22Clinker+brick%22">Clinker brick</searchLink><br /><searchLink fieldCode="DE" term="%22Portland+cement+industry%22">Portland cement industry</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Microcalorimetry%22">Microcalorimetry</searchLink>
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  Data: The present work focuses on the mineralogy and the reactivity of clinkers made from the integration of natural fluorapatite in the raw meals with percentages ranging from 0 up to15%. The samples were characterized by infrared spectrometry, X-ray diffraction and microscopy techniques. The distribution of phosphorous and fluorine into clinkers minerals was determined by MEB/EDS mapping. The mineralogical composition was determined by XRD/Rietveld and the samples reactivity followed by isothermal microcalorimetry. It has been found that fluorine stabilizes C 3 S and β-C 2 S which still are found with high levels of P 2 O 5 . Cements obtained from up to 8% natural fluorapatite incorporation still present acceptable properties. Natural fluorapatite could have an important potential as decarbonised source of CaO contributing to decrease the CO 2 emission in cement industry. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Cement & Concrete Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.cemconres.2018.01.006
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 72
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      – SubjectFull: Fluorapatite
        Type: general
      – SubjectFull: Clinker brick
        Type: general
      – SubjectFull: Portland cement industry
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      – SubjectFull: X-ray diffraction
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      – SubjectFull: Microcalorimetry
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            NameFull: Labidi, Islem
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              Text: Mar2018
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              Y: 2018
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