Microstructural characteristics of belite–sulfoaluminate cement clinkers with bottom ash
| Autor: | Lea Žibret, Andrej Ipavec, Sabina Dolenec |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
udc:54
BSCA clinker belite calcium sulfoaluminate secondary raw materials microstructure reactivity microstructure kalcijev sulfoaluminat mikrostruktura belit Building and Construction secondary raw materials belite calcium sulfoaluminate reactivity sekundarne surovine BSCA clinker klinker BSCA udc:620.1/.2 54 reaktivnost General Materials Science klinker BSCA belit kalcijev sulfoaluminat sekundarne surovine mikrostruktura reaktivnost Civil and Structural Engineering |
| Zdroj: | Construction & building materials, 14 str., Vol. 321, Feb. 2022 COBISS-ID: 25270784 Construction & building materials, vol. 321, 2022. |
| ISSN: | 0950-0618 |
| Popis: | The incorporation mechanism of impurities derived from raw materials into a belite-sulfoaluminate cement clinker with bottom ash was investigated in two raw mixtures. Alkalis lowered the sintering temperature by 50 °C. Ti stabilized β belite and prevented the formation of γ-belite. Sodalite solid solution showed an incomplete substitution of Si by Al. At a higher Ti content ferrite solid solution trended towards perovskite composition. Although calcium sulfoaluminate only fully developted at 1300 °C, the clinkers sintered at 1200 °C were the most reactive, as the presence of anhydrite at 1200 °C accelerated early hydration. Clinker reactivity decreased with an increase in sintering temperature. |
| Databáze: | OpenAIRE |
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