Moisture diffusion coefficient of concrete under different conditions
F Zhou, W Li, Y Hu, L Huang, Z Xie, J Yang, D Wu… - Buildings, 2023 - mdpi.com
Humidity change in concrete is the leading cause of concrete shrinkage. Moreover, the
moisture diffusion coefficient of concrete is an essential parameter for assessing and …
moisture diffusion coefficient of concrete is an essential parameter for assessing and …
Extended microprestress-solidification theory for long-term creep with diffusion size effect in concrete at variable environment
S Rahimi-Aghdam, ZP Bažant… - Journal of Engineering …, 2019 - ascelibrary.org
The solidification theory has been accepted as a thermodynamically sound way to describe
creep reduction due to deposition of hydrated material in the pores of concrete. The concept …
creep reduction due to deposition of hydrated material in the pores of concrete. The concept …
Tests and prediction model for time-dependent internal relative humidity of recycled aggregate concrete due to self-desiccation
X Chen, H Zhang, Y Geng, YY Wang - Construction and Building Materials, 2022 - Elsevier
The concrete internal relative humidity (RH) is the direct evidence of internal curing effect,
controlling concrete shrinkage deformation and also affecting the strength development …
controlling concrete shrinkage deformation and also affecting the strength development …
Prediction of autogenous shrinkage in concrete from material composition or strength calibrated by a large database, as update to model B4
In modern concretes, the autogenous shrinkage, ie, the shrinkage of sealed specimens, is
much more important than it is in traditional concretes. It dominates the shrinkage of thick …
much more important than it is in traditional concretes. It dominates the shrinkage of thick …
[HTML][HTML] Predictive hydration model of Portland cement and its main minerals based on dissolution theory and water diffusion theory
Efficient and accurate cement hydration simulation is an important issue for predicting and
analyzing concrete's performance evolution. A large number of models have been proposed …
analyzing concrete's performance evolution. A large number of models have been proposed …
Unsaturated nanoporomechanics
H Nguyen, S Rahimi-Aghdam… - Proceedings of the …, 2020 - National Acad Sciences
Although some important advances in the modeling of sorption and hygrothermal
deformations of nanoporous materials such as hydrated cement paste, shale, coal, and …
deformations of nanoporous materials such as hydrated cement paste, shale, coal, and …
Century-long expansion of hydrating cement counteracting concrete shrinkage due to humidity drop from selfdesiccation or external drying
A physically based model for auotgenous shrinkage and swelling of portland cement paste
is necessary for computation of long-time hydgrothermal effects in concrete structures. The …
is necessary for computation of long-time hydgrothermal effects in concrete structures. The …
Effect of internal curing on shrinkage of calcium sulfoaluminate cement concrete and calculation of the shrinkage stress at early age considering creep
Z Fu, G Ke, X Kong, J Zhang - Journal of Building Engineering, 2023 - Elsevier
Abstract Effect of internal curing on shrinkage of calcium sulfoaluminate cement (CSA)
concrete in both sealed condition and dry/wet cycles was studied using four CSA concretes …
concrete in both sealed condition and dry/wet cycles was studied using four CSA concretes …
Drying of mortar at ambient temperature studied using high resolution neutron tomography and numerical modeling
The drying of cement-based materials, naturally occurring in most civil engineering contexts,
affects their thermal, hydraulic and mechanical properties and is a leading contributor to the …
affects their thermal, hydraulic and mechanical properties and is a leading contributor to the …
Thermal stress state of reinforced concrete floor slab
M Barabash, M Romashkina… - Strength of materials …, 2019 - omtc.knuba.edu.ua
The article provides research of the stress-strain state of a reinforced concrete floor slab
under fire conditions according to refined method. The finite element model of the slab is …
under fire conditions according to refined method. The finite element model of the slab is …