Modified High-Viscosity Asphalt Patching Tape for Road Repair
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Solution Overview
Problem
Current methods for repairing asphalt road surfaces with turtle shell-shaped cracks or pitted surfaces are inefficient, leading to poor repair results, long construction periods, and short service life, especially in regions with large temperature fluctuations.
Innovation Solution
A modified high-viscosity asphalt and road asphalt patching tape are developed, comprising specific raw materials and preparation methods, including heating, stirring, shearing, and milling, along with the application of a crack-proof fiber cloth and gravels, to create a durable and effective repair solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If hot asphalt mixed with sands is used for repair, then repair cost is low, but repair result is poor and service life is short
Solution Approach 1:
The patent uses composite materials by combining modified high-viscosity asphalt with fiber cloth and gravel to create a multi-component repair system. The fiber cloth provides structural reinforcement while the asphalt matrix provides binding and sealing, and gravel adds surface durability. This composite approach achieves both cost-effectiveness and high repair quality with extended service life.
2Reliability
If plant-mixed asphalt mixtures are used for digging and patching, then repair result is improved, but construction period is long and equipment requirements increase
Solution Approach 1:
The patent segments the repair system into distinct functional layers: fiber cloth for structural reinforcement, modified asphalt for binding and sealing, and gravel for surface durability. This segmentation allows each component to be optimized independently and applied in a systematic manner, improving construction efficiency while maintaining high repair quality.
Solution Approach 2:
The fiber cloth is pre-saturated with modified asphalt before application, creating a pre-assembled repair unit that requires minimal on-site processing. This preliminary action eliminates the need for complex mixing equipment and extended construction time, while ensuring uniform material distribution and consistent repair quality.
3Ease of operation
If conventional asphalt is used, then application is simple, but high-temperature performance and wear resistance are insufficient
Solution Approach 1:
The patent modifies the asphalt by changing its chemical composition parameters through the addition of modifiers and adhesion promoters. These parameter changes enhance the asphalt's high-temperature performance, adhesion properties, and wear resistance while maintaining its workability and ease of application. The modified asphalt retains its fluidity for easy application but gains superior mechanical properties.
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 modified high-viscosity asphalt and patching tape provide excellent high-temperature performance, wear resistance, and extended service life, allowing for rapid and effective repair of damaged road surfaces without requiring large equipment, while preventing further damage and extending the road's lifespan by 5 to 8 years.
Implementation Method 1
a first step of dipping crack-proof fiber cloth into the modified high-viscosity asphalt
Implementation Method 2
a first step of heating a required amount of base asphalt mixture to 185° C. to 190° C.
Data Source
AI summary
The modified high-viscosity asphalt has raw materials of a base asphalt mixture, an oil slurry, a rubber modifier, modified petroleum resin, an anti-stripping agent, and carbon black powder. The road asphalt patching tape has good high-temperature performance, excellent wear resistance to wheels, a very high friction coefficient and good low-temperature ductility. The road asphalt patching tape can be closely attached to and effectively repair the diseased road surface. In this way, the road asphalt patching tape is compactly connected to the diseased road surface, which can strengthen the diseased road surface, strengthen the overall strength of the cracked area, and prevent diseases, such as turtle shell-shaped cracks, pitted surfaces or the like, from deteriorating into potholes or the like.