期刊
ACTA MATERIALIA
卷 57, 期 5, 页码 1666-1674出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2008.12.007
关键词
Calcium-silicate-hydrate (C-S-H); Crystal structure; Elastic behavior; Atomic potentials; Nanostructure
资金
- Basque Government [IE05-151]
- Spanish Ministerio de Ciencia y Tecnologia (MCyT) of Spain [Fis 2004-06490-C03-00]
- European Network of Excellence [INM4-CT-2004-500198]
The elastic properties of the most important phases present in cement pastes have been studied by force field atomistic methods. Calculations reproduce the mechanical properties of crystalline species alite, belite and portlandite fairly well. The elastic properties of amorphous calcium-silicate-hydrate (C-S-H) gel are also explained in terms of the commonly used structural models 1.4 nm tobermorite and jennite, once the intrinsic porosity and the silicate chain length are Concurrently considered through the appropriate micromechanical models. The findings Conclude that bringing the atomic structure into contact with the mechanical properties of C-S-H gel may modify the actual view of the gel. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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