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Phase evolution and...
Phase evolution and burnability of cement raw meal
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- Aguirre Castillo, José (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Heidelberg Materials Cement Sverige AB, Slite, Sweden
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- Broström, Markus (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik
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- Eriksson, Matias (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Swedish Mineral Processing Research Association (MinFo), Stockholm, Sweden
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(creator_code:org_t)
- ICE publishing, 2023
- 2023
- Engelska.
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Ingår i: Advances in Cement Research. - : ICE publishing. - 0951-7197 .- 1751-7605. ; 35:12, s. 577-587
- Relaterad länk:
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https://doi.org/10.1...
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visa fler...
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https://umu.diva-por... (primary) (Raw object)
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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 use of high-temperature X-ray diffraction (HT-XRD) to study the mass transfer of raw meal constituents towards forming clinker phases and the occurrence of free lime (calcium oxide), also known as burnability, was assessed. A measuring strategy with temperature ranging from 1000°C to 1450°C was developed and compared with a conventional burnability method. The free lime determined by the methods showed that HT-XRD produced good results for the evaluation of burnability. In addition, HT-XRD revealed the formation of intermediate phases, providing insight into early reactions in a cement kiln. The particle size of quartz was found to affect crystal expansion of the phase at a high temperature, subsequently affecting the formation of silica polymorphs. The different raw meals used in this study also indicate that the formation of different silica polymorphs affects the formation of C2S. The lack of knowledge regarding the influence of β-quartz on the reduction of free lime is highlighted.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Nyckelord
- characterisation techniques
- clinkering
- clinkering reactions
- phase transition
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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