一种环保型钢渣沥青混合料及其制备方法
By combining modified basalt fiber and steel slag stabilizer, the problem of steel slag easily expanding and loosening in asphalt mixtures is solved, achieving comprehensive performance improvement in high-temperature rutting resistance, low-temperature crack resistance and water damage resistance, thus extending the service life of the pavement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG WEIKESAI NEW MATERIAL TECH CO LTD
- Filing Date
- 2026-04-15
- Publication Date
- 2026-07-17
AI Technical Summary
Steel slag tends to expand and loosen in asphalt mixtures, resulting in weak interfacial bonding and frequent pavement defects. It is difficult to simultaneously meet the comprehensive performance requirements such as high-temperature rutting resistance, low-temperature crack resistance, water damage resistance, and fatigue resistance.
The method combines basalt fiber modified with reinforcing agent with steel slag stabilizer. The reinforcing agent modifies the surface of basalt fiber with silane coupling agent to form an organic graft layer to improve the interfacial bonding ability. The steel slag stabilizer improves the compatibility and bonding strength between steel slag and asphalt through porous calcium silicate microspheres and chitosan cross-linking layer.
It significantly improves the low-temperature crack resistance, fatigue resistance and high-temperature stability of asphalt mixtures, improves the interfacial bonding between steel slag and asphalt, extends the service life of pavements, and simplifies the preparation process, making it easier for industrial promotion.
Smart Images
Figure CN122010466B_ABST