Effects of steel bar and bi-directional erosion on chloride diffusion in reinforced concrete: A 3D mesoscale study

C Zeng, Z Zheng, H Zhang, Y Huang, X Wang - Construction and Building …, 2023 - Elsevier
This work proposes a novel numerical framework to investigate 3D chloride diffusion
behavior in reinforced concrete (RC). An efficient dynamic modeling approach is developed …

Modeling and fracture behavior of mesoscale concrete considering actual aggregate shapes and placement domain shapes

T Zhu, Z Chen, L Zhang, G Nian, Y Chen… - Construction and Building …, 2023 - Elsevier
The establishment of meso-concrete models under complex boundary conditions still faces
great challenges at present. In this study, a numerical framework for constructing concrete …

Exploring exact effects of various factors on chloride diffusion in cracked concrete: ABAQUS-based mesoscale simulations

R Zhao, M Wang, X Guan - Materials, 2023 - mdpi.com
Chloride ion attack is a major cause of concrete durability problems, and existing studies
have rarely addressed the effects of damage zones. In this paper, an improved mesoscale …

Research on two-dimensional digital characterization of crushed stone aggregates in the SCC filling layer of the CRTS III slab ballastless track

W Jiang, Y Xie, K Ma, J Wu, G Long - Construction and Building Materials, 2023 - Elsevier
Through the actual situation of on-site construction and building, it could be found that the
filling quality of the SCC filling layer had a large correlation with the apparent morphology of …

Numerical and experimental analysis of chloride and iodide transports in concrete under natural diffusion

C Liao, H Jin, W Liu, J Liu, S Zhong, F Xing… - … and Building Materials, 2023 - Elsevier
This study investigates the natural diffusion laws of chloride ions and iodide ions in concrete
and proposes their correlations during the process of diffusion. By measuring the free ion …

Parameterized implementation of a triple refined modeling framework for mesoscale concrete

Z Zheng, C Zeng, X Wei, J Chen - Construction and Building Materials, 2022 - Elsevier
As a typical heterogeneous composite material, concrete's complex physical and
mechanical behaviors on the macroscale are controlled by its mesoscale components and …

Effects of pore structure and chloride binding capacity on chloride diffusion in limestone cement paste

Z Jiang, Y Pan, L Wan-Wendner, C Fu, Y Wang… - … and Building Materials, 2024 - Elsevier
The limestone powder has been a preferred admixture in cement-based materials due to its
abundant availability and potential to reduce carbon emission. The purpose of this study is …

Time-varying analytical model and mesoscopic numerical simulation of chloride ion diffusion in prestressed concrete cylinder pipe

Y Hu, S Hu, Y Ye, W Li, C Li - Journal of Building Engineering, 2024 - Elsevier
In this paper, a time-varying analytical model for chloride ion diffusion in Prestressed
Concrete Cylinder Pipe (PCCP) protective layer is established based on the separation of …

Influence of 3D Aggregate Shape on the Meso-Structure of 2D Cross-Sectional Concrete by the Numerical Slicing Method

T Zhu, Z Chen, G Nian, L Zhang, M Bao… - Arabian Journal for …, 2024 - Springer
Aggregate shape is essential for evaluating concrete properties. Most of the existing
literature utilizes X-ray computed tomography (X-CT) to assess the morphological …

Exploring the Exact Effects of Various Factors on Chloride Diffusion in Marine Concrete: Abaqus-Based Mesoscale Simulations

R Zhao, M Wang, M Zhao, X Guan - Available at SSRN 4258642 - papers.ssrn.com
An improved mesoscale model including the damage zone is proposed to simulate the
effects of cracks, water-cement ratio and aggregate shape on chloride diffusion in concrete …