Asphalt mixture additive as well as preparation method and application thereof
An asphalt mixture additive was prepared by activating asphalt-based graphene microflakes and modifying nano-silica, which solved the problem of poor dispersibility of nano-SiO2 in asphalt and improved the high temperature resistance, spalling resistance and rutting resistance of asphalt.
CN121851733APending Publication Date: 2026-04-14CHINA PETROLEUM & CHEMICAL CORP +2
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Patent Information
- Application Number
- CN202411432184.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2026-04-14
AI Technical Summary
Technical Problem
Existing technologies struggle to uniformly disperse nano-SiO2 in asphalt, limiting its improving effect. Meanwhile, asphalt's resistance to high temperatures, spalling, and rutting is insufficient.
Method used
A branched polyethyleneimine-activated asphalt-based graphene microsheets were used, and nano-silica was modified with phosphate esters and combined with titanate coupling agents to prepare an asphalt mixture additive that improves the dispersibility and interfacial interaction of nanoparticles in asphalt.
Benefits of technology
It improves the high temperature resistance, spalling resistance and rutting resistance of asphalt, and enhances the overall performance of asphalt mixtures.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses an asphalt mixture additive as well as a preparation method and application thereof. The asphalt mixture additive comprises the following components in parts by weight: 100 parts of base asphalt; 1-10 parts of a modifier; 1-10 parts of a performance regulator; the performance regulator is obtained by modifying nano silicon dioxide with an accelerant, and the accelerant is a phosphate ester substance. The asphalt mixture additive disclosed by the invention is used in the asphalt mixture mixing process, and the use performances of high temperature resistance, stripping resistance, rutting resistance and the like of the asphalt mixture can be improved.
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