TY - JOUR
T1 - A simplified probabilistic model for the combined action of carbonation and chloride ingress
AU - Zhu, Xingji
AU - Zi, Goangseup
AU - Sun, Lianfang
AU - You, Ilhwan
N1 - Funding Information:
This work was supported by grants from the Regional Development Research Program funded by the Ministry of Land, Infrastructure and Transport of the Korean government (17RDRP-B134576) and the National Natural Science Foundation of China (51678208). Xingji Zhu is grateful for the support of the Natural Science Foundation of Shandong Province (ZR2018BEE044).
PY - 2019/4/1
Y1 - 2019/4/1
N2 - This paper presents an improved numerical model for the reliability analysis of corrosion initiation due to the combined action of carbonation and chloride ingress. The coupled mechanism of carbon dioxide, chloride ions, heat and moisture is considered in the model. The probability of corrosion initiation is evaluated by means of a single limit state function in which the critical concentration of chloride ions depends on the degree of carbonation. In addition, the coupled diffusion coefficients are interpolated linearly depending on the degree of carbonation in order to simplify the structure of the model without compromising accuracy.
AB - This paper presents an improved numerical model for the reliability analysis of corrosion initiation due to the combined action of carbonation and chloride ingress. The coupled mechanism of carbon dioxide, chloride ions, heat and moisture is considered in the model. The probability of corrosion initiation is evaluated by means of a single limit state function in which the critical concentration of chloride ions depends on the degree of carbonation. In addition, the coupled diffusion coefficients are interpolated linearly depending on the degree of carbonation in order to simplify the structure of the model without compromising accuracy.
KW - carbonation
KW - cement
KW - cementitious materials
KW - durability-related properties
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U2 - 10.1680/jmacr.18.00140
DO - 10.1680/jmacr.18.00140
M3 - Article
AN - SCOPUS:85062844774
SN - 0024-9831
VL - 71
SP - 327
EP - 340
JO - Magazine of Concrete Research
JF - Magazine of Concrete Research
IS - 7
ER -