3. Synthesis of highly reactive pure cement phases

  • Pure phases of ordinary Portland cements (OPC), belite cements, and cal-cium aluminate cements (CAC) are often synthesized to understand the formation ofthe phases during the sintering process and to investigate their hydration behaviorin simplified conditions. Due to the need to reduce CO2emissions in cement produc-tion, the usage of by-products from other industries with a better homogenization ofthe chemical components is often discussed. In addition to the traditional solid statereaction, other low temperature synthesis methods such as self-propagating combus-tion synthesis, sol gel synthesis, and polymeric precursor processes (Pechini process)were used to understand phase formation by using better homogenized raw materials.By using these synthesis routes, cement phases with a much higher specific surfacearea and reactivity can also be achieved. The hydration process, which starts on thesurface area of the particles, can be much better characterized using these kinds ofsynthesis methods. The target of this chapter is therefore toPure phases of ordinary Portland cements (OPC), belite cements, and cal-cium aluminate cements (CAC) are often synthesized to understand the formation ofthe phases during the sintering process and to investigate their hydration behaviorin simplified conditions. Due to the need to reduce CO2emissions in cement produc-tion, the usage of by-products from other industries with a better homogenization ofthe chemical components is often discussed. In addition to the traditional solid statereaction, other low temperature synthesis methods such as self-propagating combus-tion synthesis, sol gel synthesis, and polymeric precursor processes (Pechini process)were used to understand phase formation by using better homogenized raw materials.By using these synthesis routes, cement phases with a much higher specific surfacearea and reactivity can also be achieved. The hydration process, which starts on thesurface area of the particles, can be much better characterized using these kinds ofsynthesis methods. The target of this chapter is therefore to describe different synthe-sis methods for pure cement phases and the phase formation of the phases obtainedby different synthesis routes.show moreshow less

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Metadaten
Author:Bastian RaabORCiD, Herbert Pöllmann
DOI:https://doi.org/10.1515/9783110473728-004
ISBN:978-3-11-047373-5
Parent Title (English):Cementitious Materials
Publisher:De Gruyter
Document Type:Part of a Book
Language:English
Reviewed:Begutachtet/Reviewed
Release Date:2025/04/02
Tag:synthesis, cement phase, Portland cement, calcium aluminate cement,nano, sol-gel, polymer precursor process, GNP
First Page:61
Last Page:102
institutes:Fakultät Werkstofftechnik
Research Themes:Materialien & Produktionstechnik
Licence (German):Keine Lizenz - Deutsches Urheberrecht gilt
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