کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7884836 1509718 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Natural fluorapatite as a raw material for Portland clinker
ترجمه فارسی عنوان
فلوراپاتیت طبیعی به عنوان یک ماده خام برای کلینکر پورتلند
کلمات کلیدی
فلوئوراپاتیت طبیعی، کانی شناسی کلینکر، واکنش پذیری،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
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 C3S and β-C2S which still are found with high levels of P2O5. 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 CO2 emission in cement industry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 105, March 2018, Pages 72-80
نویسندگان
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