Carbon dioxide integration into alkali aluminosilicate cement particles for achievement of improved properties
Journal Article
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· Journal of Cleaner Production
- Yarmouk University, Irbid (Jordan); DOE/OSTI
- Michigan State University, East Lansing, MI (United States)
Alkali aluminosilicate cement developed using ground granulated blast furnace slag was produced mechanochemically in the presence of lime and sodium hydroxide. Processing of this cement in a carbon dioxide environment led to the incorporation of carbon dioxide into the resultant hydraulic cement as metastable carbonate complexes. The hydration reactions of cement were complemented with formation of crystalline carbonates; the resultant hydrates and carbonates made synergistic contributions towards the binding effects and stability of the inorganic binder. Analytical chemistry and physical test methods were performed on cements and their hydrates in order to understand the form of carbon dioxide in their corresponding structures. Here the test results indicated that carbon dioxide was integrated into the cement particles in metastable form, which formed carbonate crystallites integrated with the amorphous hydrates in the course of hydration of cement. This phenomenon led to significant improvements in the mechanical properties of the resulting binder.
- Research Organization:
- Michigan State University, East Lansing, MI (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0015197
- OSTI ID:
- 1538409
- Alternate ID(s):
- OSTI ID: 1495309
- Journal Information:
- Journal of Cleaner Production, Journal Name: Journal of Cleaner Production Journal Issue: C Vol. 196; ISSN 0959-6526
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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