Experiences from RILEM TC 235-CTC in recommending a test method for chloride threshold values in concrete

Luping Tang; Jens M Frederiksen; Ueli M Angst; Rob Polder; Maria Cruz Alonso; Bernhard Elsener; Doug Hooton; Jose Pacheco

doi:10.21809/rilemtechlett.2018.55

Experiences from RILEM TC 235-CTC in recommending a test method for chloride threshold values in concrete

Authors

Luping Tang Chalmers University of Technology
Jens M Frederiksen COWI A/S, Parallelvej 2, DK-2800 Kongens Lyngby, Denmark
Ueli M Angst ETH Zurich, Institute for Building Materials
Rob Polder Delft University of Technology, Materials and Environment, 2600 AA Delft, Netherlands
Maria Cruz Alonso Eduardo Torroja Institute for Construction Science (IETcc), 28033 Madrid - Spain
Bernhard Elsener ETH Zurich, Institute for Building Materials, CH-8093 Zurich, Switzerland
Doug Hooton University of Toronto, Department of Civil Engineering, Toronto, ON, Canada, M5S1A4
Jose Pacheco Delft University of Technology, Materials and Environment, 2600 AA Delft, Netherlands, CTLGroup - Materials & Mechanics, Skokie, IL 60077, U.S.A

DOI:

https://doi.org/10.21809/rilemtechlett.2018.55

Keywords:

Chloride; concrete; corrosion; test method; threshold.

Abstract

Chloride threshold value is an important input parameter in service life predictions. There has been a need for a reliable method for testing this value in order to improve the understanding of basic factors influencing the corrosion initiation. For this reason RILEM technical committee (TC) 235-CTC was formed with the ultimate aim to recommend a suitable test method capable of delivering data with acceptable measurement uncertainty. During the TC’s life, a test method was proposed and a Round-Robin Test (RRT) was organised to evaluate it. Due to the unexpected results from the RRT, the ultimate aim of the TC was not reached. There were some experiences obtained from the TC’s work especially in designing the test method which are worthy for supporting future researchers continuing to search for a reliable test method for it. This technical letter presents the TC’s experiences.

Experiences from RILEM TC 235-CTC in recommending a test method for chloride threshold values in concrete

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Published

27.09.2018

How to Cite

(1)

Tang, L.; Frederiksen, J. M.; Angst, U. M.; Polder, R.; Alonso, M. C.; Elsener, B.; Hooton, D.; Pacheco, J. Experiences from RILEM TC 235-CTC in Recommending a Test Method for Chloride Threshold Values in Concrete. RILEM Tech Lett 2018, 3, 25-31.

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Issue

Vol. 3 (2018)

Section

Articles

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Authors retain copyright of the articles published in RILEM Technical Letters and grant the journal the right of first publication with open access. The work is simultaneously licensed under Creative Commons Attribution 4.0 International License (CC BY 4.0) that allows others to share and adapt the work under the following terms: 1) a proper attribution is given in a form of a reference to the original work's authorship and initial publication in RILEM Technical Letters (bibliographic record with the DOI link); 2) a link to the license is provided; 3) the changes (if any) are indicated.