A Review of Concrete Strengthening Methods Using Synthetic and Natural Composites †
Abstract
1. Introduction
2. External Strengthening of RC Members with FRP Composites
- Ease of adaptation to various geometries;
- Ease of implementation;
- High resistance to fatigue;
- Enhanced durability;
- Minimum of maintenance.
3. Externally Bonded Reinforcement in Grooves (EBRIGI) Technique
4. Externally Bonded Reinforcement on Grooves (EBGOR) Technique
5. Near-Surface-Mounted (NSM) Technique
- Reduced surface preparation and, in some cases, even installation work can be minimized;
- FRP reinforcements can easily be anchored to the adjacent elements preventing delamination failures;
- The strengthening effective levels are higher, as FRP reinforcements are protected by the embedding concrete and are therefore less exposed to mechanical damage, fire, and vandalism;
- The visual appearance of the reinforced structure is virtually unchanged.
6. Strengthening Techniques of Embedded Through Section (ETS)
7. Reinforcement Using Natural Fibers
8. Conclusions
- Increased load-bearing capacity;
- Reduced deflection;
- Increased ductility;
- Increased stiffness.
9. Patent
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Abbreviations
FRP | Fiber-Reinforced Polymer |
EBRIG | Externally Bonded Reinforcement In Grooves |
EBROG | Externally Bonded Reinforcement On Grooves |
ETS | Embedded Through-Section |
NSM | Near-Surface Mounted |
CFRP | Carbon Fiber-Reinforced Polymer |
EBR | Externally Bonded Reinforcement |
RC | Reinforced Concrete |
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Ed-Dariy, Y.; El Bhiri, B.; Deifalla, A. A Review of Concrete Strengthening Methods Using Synthetic and Natural Composites. Eng. Proc. 2025, 112, 35. https://doi.org/10.3390/engproc2025112035
Ed-Dariy Y, El Bhiri B, Deifalla A. A Review of Concrete Strengthening Methods Using Synthetic and Natural Composites. Engineering Proceedings. 2025; 112(1):35. https://doi.org/10.3390/engproc2025112035
Chicago/Turabian StyleEd-Dariy, Yasmina, Brahim El Bhiri, and Ahmed Deifalla. 2025. "A Review of Concrete Strengthening Methods Using Synthetic and Natural Composites" Engineering Proceedings 112, no. 1: 35. https://doi.org/10.3390/engproc2025112035
APA StyleEd-Dariy, Y., El Bhiri, B., & Deifalla, A. (2025). A Review of Concrete Strengthening Methods Using Synthetic and Natural Composites. Engineering Proceedings, 112(1), 35. https://doi.org/10.3390/engproc2025112035