000014854 001__ 14854 000014854 005__ 20161115100204.0 000014854 04107 $$aeng 000014854 046__ $$k2016-08-21 000014854 100__ $$aPellenq, Roland 000014854 24500 $$aThe bottom-up modeling approach to cement paste (INVITED) 000014854 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers 000014854 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016 000014854 506__ $$arestricted 000014854 520__ $$2eng$$aStrength and other mechanical properties of cement paste and concrete rely upon the formation of Calcium–Silicate–Hydrates (C–S– H) during cement hydration. Here we propose a novel description of the C–S–H meso-scale texture with an opportunity to translate results from the fundamental (nano) scale to the macro-scale of engineering properties. We use simulations that combine information of the nano-scale building units of C–S–H and on their effective interactions, obtained from atomistic simulations and experiments, into a statistical physics framework for aggregating nanoparticles. We compute small angle scattering intensities, pore size distributions, local densities, indentation modulus of the material, providing a new quantitative understanding of different experimental investigations. Our results lead to a quantitative insight into how the heterogeneities developed during the early stages of hydration persist in the structure of C–S– H and impact the mechanical performance of the hardened cement paste. . 000014854 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000014854 653__ $$a 000014854 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016 000014854 720__ $$aPellenq, Roland 000014854 8560_ $$ffischerc@itam.cas.cz 000014854 8564_ $$s209958$$uhttps://invenio.itam.cas.cz/record/14854/files/TS.FS05-1.03.pdf$$yOriginal version of the author's contribution as presented on CD, page 3180, code TS.FS05-1.03 . 000014854 962__ $$r13812 000014854 980__ $$aPAPER