Modeling Shrinkage of Portland Cement Paste

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DOI: 10.14359/19828

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摘要: Based on the theories of poromechanics and mechanics composites, a multi-scale constitutive model is developed for hardening cement past shrinkage simulation. The driving force autogenous considered capillary stress. also considers applied pressure, which some applications can be another shrinkage. For elastic properties paste, micromechanical first formulated; then calcium-silicate-hydrate's (C-S-H's) nonlinearity creep behaviors, are great importance paste C-S-H's time-dependent back-calibrated against experimental results. Final verification done through reproduction both different pastes, other data compared with

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