Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 92, Issue 10, Pages 2443-2446Publisher
WILEY
DOI: 10.1111/j.1551-2916.2009.03231.x
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Funding
- Spanish Ministry of Education and Science [MAT2003-06479-CO3, CTM2006-12551-CO3]
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This paper describes the influence of different thermally activated clay wastes (ACW) on the hydration phases in cement pastes containing two percentages of addition (10% and 20%). Results show that the main products obtained during hydration of cement pastes containing ACW were portlandite, calcium aluminate hydrates, calcium silicate hydrates, and hydrotalcite-type compounds. Portlandite formation decreases when addition percentage is 20%, contrary to tetracalcium aluminate hydrate, which increases in similar conditions. The ACW that showed the most portlandite consumption was ACW1 (700 degrees C, 2 h) according to thermogravimetric data.
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