Chloride penetration in freeze–thaw induced cracking concrete: A numerical study
Artikel i vetenskaplig tidskrift, 2021

Reinforced concrete (RC) structures, serving in marine and cold environments, are attacked by freeze–thaw cycles (FTCs) and chloride penetration, both of which can cause serious deterioration of RC structures. Existing studies lack of models considering the development of pore structure, as well as crack propagation caused by freeze and thaw. In this study, a multi-phase numerical model is proposed for studying chloride transport in concrete under FTCs. Unlike the existing models, the diffusion coefficient in the presented work is associated with the evolution of pore structure, and the induced crack is considered to be time-dependent and propagates with cycles of freeze–thaw action. The validity of the presented model is verified against a set of third-party experiments. Some important factors, such as FTCs, crack width, porosity, connectivity and most probable pore diameter factor are elaborated to illustrate how these factors affect chloride transport. The findings can bring insights to the durability design of RC structures serving in cold or marine regions.

Chloride penetration


Crack propagation

Freeze-thaw cycles

Pore structure


Lin jie Li

Shanghai Jiao Tong University

Qing feng Liu

Shanghai Jiao Tong University

Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure

Luping Tang

Chalmers, Arkitektur och samhällsbyggnadsteknik, Byggnadsteknologi

Zhe Hu

Shanghai Jiao Tong University

Yong Wen

Xinjiang University

Peng Zhang

Qingdao University

Construction and Building Materials

0950-0618 (ISSN)

Vol. 302 124291


Teknisk mekanik


Annan samhällsbyggnadsteknik



Mer information

Senast uppdaterat