Polyurethane Surface Composition for Roadway Void Repair
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Solution Overview
Problem
Existing repair processes for asphalt and concrete surfaces, as well as manhole structures, are often expensive and ineffective, leading to inadequate long-term solutions due to the use of low-cost materials that require significant equipment and labor, and fail to address safety hazards and surface deterioration.
Innovation Solution
A surface composition comprising a liquid binder, catalyst, primer, and antimicrobial components that cure rapidly through an internal exothermic reaction to form a durable, waterproof, and sanitary surface, which can be applied to roadway voids and flooring surfaces, providing elasticity, slip resistance, and resistance to disease harboring agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If inexpensive repair materials such as cold-patch or hot-patch asphalt are used to fill roadway voids, then the material cost is low, but the repair is ineffective and short-lived requiring significant equipment and labor for application
Solution Approach 1:
The patent changes the chemical parameters of the repair material by using a two-component polyurethane system (isocyanate and polyol) that undergoes exothermic polymerization. This chemical transformation converts liquid components into a rigid, durable foam structure that provides long-term repair effectiveness while reducing the need for additional equipment and labor
Solution Approach 2:
The invention creates a composite repair material by combining polyurethane foam with various additives including fibers, aggregates, and bonding agents. This composite structure provides enhanced mechanical properties, durability, and adhesion to surrounding surfaces, resolving the contradiction between low material cost and repair reliability
2Loss of time
If traditional repair processes are used for roadway surfaces, then the initial repair can be applied quickly, but the repair requires road closure and traffic re-routing resulting in significant additional costs
Solution Approach 1:
The patent employs a rapid-curing polyurethane foam that achieves sufficient strength in minutes rather than hours or days. This allows the repair to be applied during brief maintenance windows without requiring prolonged road closures, thereby reducing the costs associated with traffic management equipment, permits, and personnel while maintaining repair effectiveness
3Ease of manufacture
If conventional flooring surfaces are used in animal facilities, then the initial surface is provided, but the surface deteriorates over time providing an environment for bacteria and virus proliferation
Solution Approach 1:
The patent modifies the surface properties by applying a polyurethane-based coating that creates a non-porous, impermeable barrier. This changes the surface parameters to prevent moisture absorption and bacterial adhesion, while the flexibility of the polyurethane material accommodates substrate movement without cracking, thereby preventing pathogen proliferation over time
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 reduces repair time and extends the lifespan of repaired surfaces, offering a cost-effective and safe solution that is resistant to moisture and temperature changes, while minimizing the need for specialized equipment and skilled labor, and inhibiting the growth of pathogens.
Implementation Method 1
The surface compositions may cure rapidly through an internal exothermic reaction process to form the repair and/or the safety flooring
Implementation Method 2
A surface composition comprising a liquid binder, catalyst, primer, and antimicrobial components that cure rapidly
Implementation Method 3
utilizing a liquid binder, catalyst, primer, and/or antimicrobial composition to provide durable, waterproof, and/or long-lasting surface compositions
Data Source
AI summary
Various embodiments provide surface compositions and methods for durable and/or load-bearing surfaces in a variety of industrial, animal, and marine applications. Compositions and methods may comprise utilizing a liquid binder, catalyst, primer, and/or antimicrobial composition to provide durable, waterproof, and/or long-lasting surface compositions to dispose within the roadway voids and/or to create a durable, sanitary surface. The surface compositions may cure rapidly through an internal exothermic reaction process to form the repair and/or the safety flooring. The surface composition may be substantially impermeable to animal waste and resistant to harboring agents of disease. In some embodiments, a filler materials may be disposed within the liquid binders to provide elasticity, compression, slip resistance, heat transfer, reduced cure time, and/or a desired surface texture to the surface composition.