Analysis of aluminum concentrations in the pore solution during hydration of tricalcium silicate
The hydration of two batches of tricalcium silicate was followed by isothermal heat conduction calorimetry and analysis of pore solution composition. These two samples were different in Al₂O₃-content and free lime concentration. It was observed that the material containing aluminum reacts slower than the pure one. The reactivity was also analyzed in the presence of ettringite, gypsum and tricalcium aluminate, respectively. The aluminum concentration in the pore solution was always below the limit of detection during hydration of the samples independent of the presence of aluminum in tricalcium silicate or the addition of most supplementary phases. Elevated aluminum concentrations were only observed in the presence of tricalcium aluminate. The experimental investigations confirm earlier results that aluminum can reduce the reactivity of tricalcium silicate. It is shown in this study that this mechanism is not based on elevated aluminum concentrations in the pore solution.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
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Supplemental Notes:
- Abstract reprinted with permission from Elsevier.
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Authors:
- Bellmann, Frank
- Ludwig, Horst-Michael
- Publication Date: 2017-5
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: pp 84-94
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Serial:
- Cement and Concrete Research
- Volume: 95
- Publisher: Elsevier
- ISSN: 0008-8846
- Serial URL: http://www.sciencedirect.com/science/journal/00088846
Subject/Index Terms
- TRT Terms: Aluminum; Hydration; Tricalcium silicate
- Uncontrolled Terms: Pore solution
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 01634692
- Record Type: Publication
- Files: TRIS
- Created Date: May 15 2017 3:16PM