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A multiscale prediction model and simulation for autogenous shrinkage deformation of early-age cementitious materials
Highlights A multiscale model of autogenous shrinkage for cementitious materials is presented. The pore structure and RH model for use in autogenous shrinkage model are suggested. The predictive capability of the combined model proposed is successfully validated.
Abstract Autogenous shrinkage of cementitious materials is a key factor leading to early-age cracking of concrete. Based on the micromechanics, the underlying multiscale framework and capillary pressure theory, a multiscale model of autogenous shrinkage is presented for cementitious materials with a homogenization method. By comparing the predictive values from models with the experimental data in the literature, the HYMOSTRUC relative humidity model and Shimomura and Maekawa pore size distribution model are recommended for use in the proposed autogenous shrinkage multiscale model. Combined with the HYMOSTRUC chemical shrinkage model, the simulated results of the autogenous shrinkage multiscale model proposed in this paper match well with the experimental data in the literature and the predictive capability is successfully validated.
A multiscale prediction model and simulation for autogenous shrinkage deformation of early-age cementitious materials
Highlights A multiscale model of autogenous shrinkage for cementitious materials is presented. The pore structure and RH model for use in autogenous shrinkage model are suggested. The predictive capability of the combined model proposed is successfully validated.
Abstract Autogenous shrinkage of cementitious materials is a key factor leading to early-age cracking of concrete. Based on the micromechanics, the underlying multiscale framework and capillary pressure theory, a multiscale model of autogenous shrinkage is presented for cementitious materials with a homogenization method. By comparing the predictive values from models with the experimental data in the literature, the HYMOSTRUC relative humidity model and Shimomura and Maekawa pore size distribution model are recommended for use in the proposed autogenous shrinkage multiscale model. Combined with the HYMOSTRUC chemical shrinkage model, the simulated results of the autogenous shrinkage multiscale model proposed in this paper match well with the experimental data in the literature and the predictive capability is successfully validated.
A multiscale prediction model and simulation for autogenous shrinkage deformation of early-age cementitious materials
Zhao, Haitao (author) / Liu, Jiaping (author) / Yin, Xinlong (author) / Wang, Yi (author) / Huang, Donghui (author)
Construction and Building Materials ; 215 ; 482-493
2019-04-25
12 pages
Article (Journal)
Electronic Resource
English
Autogenous shrinkage of cementitious materials at early ages
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