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Updated: Aug 14, 2026
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Experimental Protocol to Determine the Chloride Threshold Value for Corrosion in Samples Taken from Reinforced Concrete Structures
Published on: August 31, 2017
Mitigation Strategies for Long-Term Corrosion in CFST Structures: A Systematic Review
Safi Alsafi1, Siti Aminah Osman1, Faesal Alatshan2
1Department of Civil Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia.
Materials (Basel, Switzerland)
|August 13, 2026
Summary
Corrosion significantly degrades concrete-filled steel tube (CFST) structures. Integrated mitigation strategies, combining multiple techniques, offer the most effective long-term protection for durable infrastructure.
Area of Science:
- Civil Engineering
- Materials Science
- Corrosion Engineering
Background:
- Concrete-filled steel tube (CFST) structures offer excellent mechanical properties but face durability issues due to steel tube corrosion.
- Aggressive environmental conditions accelerate corrosion, impacting the long-term performance and safety of CFST infrastructure.
- Understanding corrosion mechanisms is crucial for developing effective protection strategies.
Purpose of the Study:
- To comprehensively review corrosion mechanisms affecting CFST structures.
- To critically evaluate existing and emerging mitigation strategies for CFST corrosion.
- To identify research gaps and provide insights for enhancing CFST durability.
Main Methods:
- Systematic literature review of corrosion processes in CFST structures.
- Analysis of environmental factors influencing corrosion (e.g., chlorides, marine exposure, freeze-thaw).
- Evaluation of various mitigation techniques including coatings, cathodic protection, and strengthening methods (FRP, FRCM, steel jacketing).
Main Results:
- Corrosion mechanisms include general, pitting, and circumferential types, influenced by environmental stressors.
- Corrosion negatively affects load capacity, ductility, buckling resistance, and failure modes of CFST members.
- No single mitigation strategy is universally superior; integrated approaches demonstrate the highest effectiveness.
Conclusions:
- Integrated mitigation strategies are essential for long-term protection of CFST structures.
- Further research is needed in long-term monitoring, internal corrosion detection, and durability modeling.
- This review aids in designing, maintaining, and rehabilitating CFST structures for enhanced sustainability.
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