Composite Fiber Wrapping Techniques for Enhanced Concrete Mechanics

Area of Science:

• Materials Science
• Civil Engineering
• Structural Engineering

Background:

• Concrete's axial compressive performance is critical in structural applications.
• Fiber-reinforced polymers (FRP) offer a promising solution for enhancing concrete properties.
• Understanding the effects of different FRP configurations is essential for optimizing structural design.

Purpose of the Study:

• To systematically investigate the enhancement effects of various fiber-reinforced polymer (FRP) materials on concrete's axial compressive performance.
• To evaluate the impact of single-layer, double-layer, and composite FRP reinforcement techniques.
• To assess the influence of different FRP materials and their combinations on concrete's strength and deformation.

Main Methods:

• Experimental evaluation of concrete specimens reinforced with single-layer, double-layer, and composite FRP.
• Assessment of axial compressive strength and deformation characteristics.
• Numerical analysis using ABAQUS 2023HF2 finite element software to validate experimental findings.

Main Results:

• Single-layer carbon fiber-reinforced polymer (CFRP) significantly improves concrete's axial compressive strength and stiffness.
• Double-layer CFRP further optimizes stress distribution and enhances load-bearing capacity.
• Composite FRP reinforcement with CFRP as the outer layer demonstrated superior performance in overall structural integrity.

Conclusions:

• FRP reinforcement effectively enhances the axial compressive performance of concrete.
• The configuration and material choice of FRP significantly influence the mechanical behavior of reinforced concrete.
• This research provides valuable data for the optimized design and application of FRP reinforcement in engineering.