Electrically driven ionic transport in the RCM and RIM: Investigations based on experiments and numerical simulations
Artikel i vetenskaplig tidskrift, 2022

In this work, the rapid chloride migration test (RCM) and the rapid iodide migration test (RIM) were utilized to investigate ionic transport in concrete with the aid of an externally applied electric field. Unlike most existing work, this study establishes computational models of ionic transport in chloride-contaminated and chloride-free concrete. The model is validated by the consistency between the numerical and experimental chloride profiles. It is found that the chloride migration depth in the RCM test is obviously affected, and the results for chloride-contaminated concrete are 50% larger compared with those for chloride-free concrete. However, the difference between the two kinds of concretes is only 5% when measured using the RIM test. Thus, the results of the RIM test are more accurate and provide a better choice for applications to characterization of chloride-contaminated concrete.

Applied electric field

Chloride content

Ionic transport

RCM/RIM test

Chloride-contaminated concrete

Numerical simulation


Jun Liu

Shenzhen University

Chenyue Liao

Shenzhen University

Hesong Jin

Shenzhen University

Zhi Lu Jiang

Shenzhen University

Renbin Xie

Shenzhen University

Luping Tang

Chalmers, Arkitektur och samhällsbyggnadsteknik, Byggnadsteknologi

Construction and Building Materials

0950-0618 (ISSN)

Vol. 331 127331


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