Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1457087 | Cement and Concrete Research | 2011 | 5 Pages |
Abstract
This study examines the influence of Al substitution for Si on the bulk modulus of calcium silicate hydrate I [C–S–H(I)], a structural analogue of C–S–H, by performing high-pressure synchrotron X-ray diffraction experiments in two C–S–H(I) samples: one a hydration product of alkali-activated slag and the other a synthetic C–S–H(I). The test result shows that not only the bulk modulus but also the incompressibility of the lattice parameters a, b, and c of two C–S–H(I) samples are very similar to each other, regardless of the Al substitution. This result may be due to the four-coordinated configuration of the substituted Al, which makes the dreierketten silicate chains maintain the same arrangement after the substitution.
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Authors
Jae Eun Oh, Simon M. Clark, Paulo J.M. Monteiro,