Non-corrosive Micro Rebar with Plastic Core and Metal Wires

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Solution Overview

Problem

Conventional micro rebar materials are prone to corrosion in harsh environments and do not effectively distribute stress within concrete structures, leading to potential structural failures under heavy loads and adverse weather conditions.

Innovation Solution

A non-corrosive micro rebar system comprising a central rod and radially distributed threads with channels, made of plastic, which securely integrates with concrete mixtures to enhance structural integrity and withstand high-force impacts by distributing stress evenly and resisting environmental degradation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional micro rebar is used to reinforce concrete structures, then structural strength is improved, but corrosion resistance deteriorates in harsh environments

Engineering Contradiction:
Improvestructural strengthVSAvoidcorrosion resistance
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The invention uses a composite structure consisting of a plastic central rod with metal wires wrapped around it. This composite design combines the corrosion resistance of plastic with the tensile strength of metal, resolving the contradiction between structural strength and corrosion resistance. The metal wires provide the necessary structural reinforcement while the plastic coating protects them from corrosion in harsh environments.

Inventive Principle:
Principle #40Composite materials

2Strength

If metal rebar is used to accommodate stress imbalances in concrete, then load-bearing capacity is improved, but weight increases

Engineering Contradiction:
Improveload-bearing capacityVSAvoidweight of rebar
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The plastic central rod with wrapped metal wires creates a composite material system that optimizes the weight-strength ratio. The plastic provides sufficient structural support with lower density than metal, while the metal wires add targeted reinforcement only where needed for stress accommodation, reducing overall weight compared to traditional solid metal rebar.

Inventive Principle:
Principle #40Composite materials

3Reliability

If more micro rebar is used to account for greater volume of concrete, then structural integrity is improved, but device complexity increases

Engineering Contradiction:
Improvestructural integrityVSAvoidrebar configuration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The micro rebar is segmented into a central rod with multiple wrapped metal wires, allowing it to be easily distributed throughout the concrete volume. This segmented structure maintains structural integrity across large concrete volumes without requiring complex rebar configurations, as each micro rebar unit independently provides reinforcement while the modular design simplifies overall system complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11041309B2Non-corrosive micro rebar
Publication Date: 2021.06.22 IMRICH STEVEN T
  • US11041309B2 patent drawing
  • US11041309B2 patent drawing
  • US11041309B2 patent drawing

AI summary

The non-corrosive micro rebar is an apparatus that reinforces concrete structures. The apparatus includes a central rod, a plurality of threads, and a plurality of channels. The central rod connects the plurality of threads to one another and allows the apparatus to be flexible within the concrete structure. The plurality of threads allows a concrete mixture to grip around the apparatus. The concrete mixture surrounds the apparatus by filling the plurality of channels. In order for apparatus to hold together the concrete structure, each of the plurality of threads includes a connecting rod and an anchoring bar. The plurality of threads laterally traverses along the central rod and is radially distributed about the central rod. The connecting bar is fixed to the central rod and is oriented perpendicular to the central rod. The connecting bar traverse across the connecting rod and is oriented concave with the connecting rod.