Impact of Deicing Salts on Transport Properties of Concrete
The ingress of deicing chemical solutions into hardened concrete can profoundly affect its physical and chemical properties. It is a known fact that salt solutions are highly conductive in comparison with pure water and expected to alter concrete’s electrical resistivity, as well as other transport properties. In this study, the influences of three deicing salts (NaCl, CaCl₂, and MgCl₂) on the transport properties of cementitious materials were investigated using four different test methods: surface resistivity (SR), rapid chloride penetrability (RCPT), sorptivity and apparent chloride diffusion (D sub a). It was observed that transport properties are influenced by different factors when exposed to deicing salts and, as a result, none of the tests should be used as a surrogate for the determination of the diffusion coefficient. A good correlation was only found between SR and RCPT.
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Supplemental Notes:
- This paper was sponsored by TRB committee AFN30 Standing Committee on Durability of Concrete.
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Corporate Authors:
500 Fifth Street, NW
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Authors:
- Kim, Haejin
- Tanesi, Jussara
- Ardani, Ahmad A
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Conference:
- Transportation Research Board 96th Annual Meeting
- Location: Washington DC, United States
- Date: 2017-1-8 to 2017-1-12
- Date: 2017
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: 19p
- Monograph Title: TRB 96th Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Calcium chloride; Concrete; Deicing chemicals; Magnesium chloride; Sodium chloride; Transport properties (Physics)
- Uncontrolled Terms: Chloride diffusion; Rapid chloride penetration test; Sorptivity tests; Surface resistivity
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 01628577
- Record Type: Publication
- Report/Paper Numbers: 17-01124
- Files: TRIS, TRB, ATRI
- Created Date: Mar 7 2017 5:27PM