Measuring chloride binding in cementitious materials: A review by RILEM TC 298-EBD
Journal article, 2025
The phase assemblage evolution of binders with novel supplementary cementitious materials (SCMS) during exposure to adverse environments needs to be quantified to accelerate their adoption, and further optimize binder formulation. As such, the interaction between chloride and cementitious matrices with novel SCMs needs to be quantified. The goal of workgroup 2 of RILEM TC EBD-298 is to assess the methods used to quantify chloride binding. This state-of-the-art report reviews the standardized and novel methods to measure chloride binding through an average content (acid/water soluble) or a specific bound content per phase (XRD, TGA, SEM–EDS, …). Each method is presented with respect to our current understanding of chloride binding and speciation in cementitious materials. The discussion around the purpose, use and reporting of each method highlights the gaps limiting the comparison between studies, in particular the lack of standard protocol, and complementary characterization. This review is the groundwork for a “cookbook” of experimental workflows to investigate chloride binding in modern cementitious binders.
Chloride binding
Measurement
Cementitious materials
Supplementary cementitious materials (SCM)
Chloride ingress
Author
Fabien Georget
Université de Sherbrooke
RWTH Aachen University
Arezou Baba Ahmadi
Chalmers, Architecture and Civil Engineering, Building Technology
Alisa Machner
Technical University of Munich
Maruša Mrak
Slovenian National Building and Civil Engineering Institute
Sabina Dolenec
University of Ljubljana
Slovenian National Building and Civil Engineering Institute
Qing Xiang Xiong
Shanghai Jiao Tong University
Joseph Shiju
University of Cambridge
Didier Snoeck
Université libre de Bruxelles (ULB)
Prannoy Suraneni
University of Miami
William Wilson
Université de Sherbrooke
Materials and Structures/Materiaux et Constructions
1359-5997 (ISSN)
Vol. 58 10 348Subject Categories (SSIF 2025)
Building Technologies
Other Materials Engineering
DOI
10.1617/s11527-025-02802-x