Incorporating elastic and creep deformations in modelling the three-dimensional autogenous shrinkage of cement paste

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چکیده

A structure-based modelling framework was established to simulate the three-dimensional autogenous shrinkage of cement paste. hydration model, HYMOSTRUC3D-E, used obtain microstructures and ionic concentrations lattice fracture model based on effective stress modulus consider elastic creep parts shrinkage. For Portland pastes with water-to-cement ratios 0.3 0.4 (where time zero set as drop in internal relative humidity), simulated linear respectively ?188 ?79 ?m/m at 160 h. The obtained total including deformations ?501 ?236 These values are close predications poromechanical models experimental data using a corrugated tube.

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ژورنال

عنوان ژورنال: Cement and Concrete Research

سال: 2022

ISSN: ['0008-8846', '1873-3948']

DOI: https://doi.org/10.1016/j.cemconres.2022.106907