Twisted Fiberglass Reinforcement Mesh Without Welded Joints
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Solution Overview
Problem
Conventional reinforcement meshes for concrete structures are inefficient in reinforcement usage and prone to corrosion, leading to structural deterioration, especially in humid environments, and existing alternatives like fiberglass rebars have limitations in strength and durability.
Innovation Solution
A reinforcement mesh composed of twisted fiberglass rebars that do not require heat welding, with fiberglass strands parted at spaced locations to form joints, secured by a thermoset adhesive mixture to maintain semi-flexibility or rigidity, providing a corrosion-resistant and efficient reinforcement solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional steel meshes are used for reinforcement, then tensile strength is provided, but corrosion occurs leading to structural deterioration
Solution Approach 1:
The patent uses fiberglass-reinforced plastic (FRP) bars instead of conventional steel bars. The composite material consists of glass fibers embedded in a plastic matrix, providing both tensile strength and corrosion resistance. This directly resolves the contradiction by replacing steel with a composite material that maintains structural strength while eliminating corrosion issues.
2Reliability
If steel reinforcing members are spaced apart from concrete surface to prevent spalling, then corrosion protection is improved, but minimum concrete thickness increases
Solution Approach 1:
The patent extracts the corrosion-prone steel component from the reinforcement system and replaces it with corrosion-free fiberglass-reinforced plastic. This eliminates the need for protective concrete cover, allowing reinforcing members to be placed closer to or even at the concrete surface without compromising durability, thereby reducing the required concrete thickness.
3Strength
If conventional steel reinforcement is used, then structural strength is achieved, but manufacturing complexity increases due to welding requirements
Solution Approach 1:
The patent replaces the mechanical welding process with a simpler insertion method. The fiberglass-reinforced plastic bars are designed with insertion holes that allow direct placement through the concrete, eliminating the need for hot welding operations, specialized equipment, and skilled welders, thereby significantly simplifying the manufacturing and installation process.
4Reliability
If fiberglass composite rebars are used as substitution for steel, then corrosion resistance is improved, but strength and durability are reduced
Solution Approach 1:
The patent employs fiberglass-reinforced plastic (FRP) composite material where glass fibers provide tensile strength and the plastic matrix provides structural integrity and environmental resistance. This composite formulation achieves both corrosion resistance and adequate structural strength, resolving the contradiction between durability and strength.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution offers improved tensile strength, resistance to corrosion, and enhanced durability for concrete structures without the need for welding, allowing for flexible and rigid states suitable for various construction applications.
Implementation Method 1
secured by a thermoset adhesive mixture to maintain semi-flexibility or rigidity
Data Source
AI summary
The present invention relates to a reinforcement mesh (1) for use in construction, the mesh (1) comprising a plurality of longitudinally and transversely extending reinforcing members (2), wherein either of the longitudinal or the transverse reinforcing members (2), each comprises a rebar comprising strands (3) of material twisted together, the strands being parted at spaced locations along their length by the other of the longitudinal or transverse rebars which extend through, and are secured at, the spaced locations of the parted strands (4). The present invention also relates to a method for producing a reinforcement mesh (1) for use in construction