%0 Journal Article
%A Manzano, H.
%A Dolado, J. S.
%A Guerrero, A.
%A Ayuela, A.
%T Mechanical properties of crystalline calcium-silicate-hydrates: 												Comparison with cementitious C-S-H gels
%D 2007
%@ 1862-6300
%U https://hdl.handle.net/11556/3877
%X This work explores from a theoretical viewpoint the mechanical properties of the most important hydration product present in cementitious environments, the so called C-S-H (calcium-silicate-hydrate) gel. The dependence of the bulk (K), shear (G) and Young's (E) modulus for the C-S-H crystals respect to its composition and the length of its silicate chains is analysed by lattice dynamic simulations with parameterised two-body and three-body potentials. Our simulations reveal that the mechanical properties of C-S-H crystals show a strong dependence on their composition. Nevertheless our calculated numbers systematically overestimate the experimental values for C-S-H gels. Only when the finite length of the silicate chains is taken into account this discrepancy disappears.
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