Barbed Wire Reinforcement for Curved Printed Concrete
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Solution Overview
Problem
Conventional concrete reinforcement methods, such as using rebar, are limited in their ability to reinforce curved configurations and can result in poor bond strength due to cold joints and incompatibility with fast-setting concrete.
Innovation Solution
A reinforced cementitious material comprising printed filaments and a reinforcement member with elongate metal wires and barbs that extend transversely, providing enhanced tensile strength and bond strength, suitable for curved configurations and printed concrete applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional rebar is used to reinforce concrete, then tensile strength is improved, but the ability to form curved configurations is limited and bond strength deteriorates due to cold joints
Solution Approach 1:
The patent applies curved reinforcement members with arcuate geometries that match the curvature of printed concrete structures. These bent reinforcement members can follow the contours of complex curved shapes, eliminating the limitation of straight rebar and enabling effective reinforcement of curved and organic architectural forms.
Solution Approach 2:
The patent changes the geometric parameters of reinforcement members by providing varied curvatures, radii, and configurations that can be customized to match different printed concrete geometries. This allows the reinforcement to adapt to various curved configurations while maintaining optimal bond strength through continuous contact with the concrete matrix.
2Strength
If traditional rebar is embedded in printed concrete, then tensile strength is improved, but bond strength deteriorates due to fast setting time creating cold joints
Solution Approach 1:
The patent incorporates reinforcement members into the printed concrete structure during the printing process itself, before the concrete fully sets. This preliminary integration ensures continuous bonding between the reinforcement and concrete matrix, eliminating cold joints that would form if reinforcement were added after the concrete had already set.
Solution Approach 2:
The patent uses the printed concrete material itself as an intermediary that bonds continuously to the reinforcement members during the deposition process. The逐层 deposition of concrete creates a continuous bonding interface with the reinforcement, preventing the formation of cold joints that would occur with traditional batch pouring methods.
3Adaptability or versatility
If printed concrete is used for complex shapes, then design flexibility is improved, but bond strength with traditional rebar deteriorates due to cold joint formation
Solution Approach 1:
The patent creates a universal reinforcement system that works effectively with both traditional and printed concrete methods. The reinforcement members are designed to be compatible with additive manufacturing processes while maintaining universal applicability across different concrete types and structural configurations, ensuring reliable bonding regardless of the construction method used.
Data Source
AI summary
Embodiments of the disclosure provide a reinforced composite material including a composite material forming a geometric body, and a reinforcement member disposed in the composite material. In some embodiments, the reinforcement member includes (i) at least one elongate metal wire extending at least partially through the composite material, and (ii) at least one barb that extends from the elongate metal wire in a transverse direction to the elongate metal wire.