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Sintering character...
Sintering characteristics of BCSAF cement clinker with added wastes from production of manganese and magnesium metals
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- Lui, Gui Qun (författare)
- School of Materials Science & Engineering, Beifang University of Nationalities, Yinchuan
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- Yang, Qixing (författare)
- Luleå tekniska universitet,Mineralteknik och metallurgi
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- Liang, Jiang (författare)
- School of Material Science and Engineering, Beifang University for Nationalities Yinchuan, Ningxia
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- Xue, Peng (författare)
- Department of Ferrous Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing
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- Zhang, Xiao Li (författare)
- School of Materials Science & Engineering, Beifang University of Nationalities, Yinchuan, Ningxia
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- Han, Feng Lan (författare)
- School of Materials Science & Engineering, Beifang University of Nationalities, Yinchuan, Ningxia
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(creator_code:org_t)
- 2017-03
- 2017
- Engelska.
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Ingår i: Advances in Cement Research. - : Institution of Civil Engineers (ICE). - 0951-7197 .- 1751-7605. ; 29:6, s. 227-235
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The production of belite-calcium sulfoaluminate-ferrite (BCSAF) cement with the addition of industrial wastes as feedstock has been studied for many years. The preparation of clinkers is essential in cement production, in which all raw materials react with each other to generate key phases in cement under some specified conditions. The objective of this study was to investigate the sintering characteristics of BCSAF cement clinkers. Four BCSAF clinkers with different compositions were examined. High-temperature microscopy, quantitative x-ray powder diffraction analysis and scanning electron microscopy were used to analyse sintering features and phase composition. The results show that the use of wastes from the production of manganese and magnesium metals, which were added to the raw materials to make clinker pellets, can significantly reduce the firing temperature of BCSAF clinker. The firing temperatures of clinkers with added wastes were below 1300°C, much lower than the temperature used for conventional Portland cement (1450°C). The ferrite phase was always found to inter-grow with the C4A3S¯">C 4 A 3 S ¯ C4A3S¯ phase or C2AS phase, just like the interstitial phase. The ferrite phase acted as a solid solution during cement sintering. A small quantity of iron oxide can make the clinker more porous, leading to energy savings in subsequent grinding processes.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Process Metallurgy
- Processmetallurgi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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