Synthesis and characterization of sulfite-containing AFm phases in the system CaO-Al{sub 2}O{sub 3}-SO{sub 2}-H{sub 2}O
Journal Article
·
· Cement and Concrete Research
- Univ. of Halle (Germany). Dept. of Mineralogy and Geochemistry
The use of sulfite-containing waste materials mainly from flue gas desulfurization causes the formation of new lamellar phases (AFm) in the field of calcium aluminum hydrates. The incorporation of sulfite anions in the structure of lamellar calcium aluminate hydroxy salts and solid solutions with tetracalcium aluminate hydrate will be shown. Using special synthesis conditions a sulfite containing ettringite (AFt) was synthesized. Besides the pure synthesis of phases, the thermal stability, the hydration stages, and other properties of sulfite-containing phases were investigated. Solid solutions of lamellar calcium aluminate hydroxy salts are discussed.
- OSTI ID:
- 684361
- Journal Information:
- Cement and Concrete Research, Vol. 29, Issue 7; Other Information: PBD: Jul 1999
- Country of Publication:
- United States
- Language:
- English
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