A bionic anti-crack asphalt mixture and a preparation method thereof
The anti-crack asphalt modifier, prepared using biomimetic principles, utilizes hydrogen bonds, ionic bonds, and covalent bonds to form a cross-linked network, solving the problem of easy cracking of asphalt pavement and achieving asphalt mixtures with high mechanical strength and self-healing ability, thus extending the service life of roads.
CN122145066APending Publication Date: 2026-06-05HANDAN MUNICIPAL TRANSPORTATION BUREAU EXPRESSWAY CONSTR MANAGEMENT CENT +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HANDAN MUNICIPAL TRANSPORTATION BUREAU EXPRESSWAY CONSTR MANAGEMENT CENT
- Filing Date
- 2026-03-11
- Publication Date
- 2026-06-05
AI Technical Summary
Technical Problem
Existing asphalt pavements are prone to cracking under long-term traffic loads and lack effective crack resistance and self-repair capabilities.
Method used
Using biomimetic principles, a biomimetic crack-resistant asphalt modifier is prepared through the interaction of hydrogen bonds, ionic bonds, and covalent bonds. A cross-linked network is formed by chitosan, sodium polyacrylate, sodium chloride, and calcium chloride solution, which is combined with matrix asphalt and mineral aggregates to construct an asphalt mixture with self-healing capabilities.
Benefits of technology
It significantly improves the mechanical strength and crack resistance of asphalt mixtures, while also possessing self-healing capabilities, extending the service life of roads and reducing damage.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure SMS_1
Abstract
The application provides a kind of bionic anti-crack asphalt mixture and its preparation method, belong to building material modification technical field, the bionic anti-crack asphalt modifier, raw material includes polyacrylic acid sodium solution, sodium chloride solution and calcium chloride solution.The bionic anti-crack asphalt modifier provided in the application forms a three-dimensional structure of interaction by the interaction of hydrogen bond, ionic bond and covalent bond, so that the ions in chitosan solution, polyacrylic acid sodium solution, sodium chloride solution and calcium chloride solution form a three-dimensional structure of interaction, while improving the mechanical strength, significantly improve the anti-crack performance and self-repairing ability of the material.The bionic anti-crack asphalt modifier and matrix asphalt, mineral aggregate are combined, so that the obtained bionic anti-crack asphalt mixture has better anti-crack function without affecting the performance of asphalt pavement.
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