Bibliographic Details
| 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] |
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| Database: |
Engineering Source |
