Cited by 25Concrete Corrosion and DurabilityConcrete and Cement Materials ResearchConcrete Properties and Behavior

A study of chloride binding capacity of concrete containing supplementary cementitious materials

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Abd El-Fattah, Heba, Abd El-Zaher, Yehia, Kohail, Mohamed·2024·Scientific Reports

Abstract

Chloride-induced steel corrosion is known to be a very common kind of deterioration of reinforced concrete. It is beneficial to bind free chloride ions to reduce the corrosion probability of the reinforcement embedded in the concrete. The binding capacity of the concrete varies according to its cementitious system. This paper investigates the chloride binding capacity of different kinds of supplementary cementitious materials (SCMs): Ground granulated blast furnace slag (GGBFS), Fly ash, and Metakaolin as a partial replacement of Ordinary Portland Cement (OPC). Different properties of concrete after chloride binding are assessed by carrying out the following tests: half-cell potential, accelerated corrosion test, compressive strength, rapid chloride penetration test, sorptivity test, measuring pH value of concrete, and XRD. The results showed that utilizing the SCMs in concrete can enhance the chloride binding capacity, especially those materials that have high quantities of aluminate and calcium in their chemical composition like GGBFS. Based on testing results, it’s recommended that the limit of the chloride content in the different codes should be revised regarding the binding capacity according to the type and quantity of the cementitious materials used.

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  • Chloride binding in blended binder systems involves both chemical reactions and physical sorption, and these mechanisms should be considered with transport properties.

    “Recent studies have emphasized that chloride binding in blended binder systems involves both chemical reactions and physical sorption, and that these mechanisms should be considered with transport properties [7, 20-24].”

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  1. [41]ASTM C1202. Standard test method for electrical indication of concrete’s ability to resist chloride ion penetration. Am. Soc. Test. Mater. 1–8. 10.1520/C1202-12.2 (2012). · DOI

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Authors
Abd El-Fattah, H., Abd El-Zaher, Y., & Kohail, M.
Affiliations
Ain Shams University (EG)
Venue
Scientific Reports
Published
2024-06-05
Volume
14
Issue
1
Pages
12970-12970
ISSN
2045-2322 (ISSN-L)
OpenAlex
W4399367915
Cited by
25
References
39
Citations by year
2026: 20 · 2025: 3 · 2024: 2
FWCI
4.17
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Greater South Information System
Funders
The Science, Technology & Innovation Funding Authority
Topics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete Corrosion and Durability
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete Properties and Behavior
Keywords
chloride binding capacity, supplementary cementitious materials, chloride-induced steel corrosion, reinforced concrete durability, ground granulated blast furnace slag, fly ash, metakaolin, partial cement replacement, chloride penetration, sorptivity, half-cell potential, compressive strength, concrete pH

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