Rheological characteristics and modification mechanism of rock asphalt compound modified binder based on grey relational analysis
Jinghui Hou, Xiaogang Guo · 2026
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Description
Jinghui Hou and Xiaogang Guo present a 2026 study of a rock asphalt additive for road binder. Normal asphalt ruts in heat and ages in air. Their additive mixes natural rock asphalt with treated titanium dioxide particles. The team tested binders with doses from none to about a third additive, using standard bend, shear, and thickness tests plus chemical scans.
The additive stiffened the binder and cut its sensitivity to temperature. Chemical scans suggested the change is mostly physical blending, helped by new polar groups. A grey relational analysis, a ranking method for linked factors, found aging resistance was the additive's strongest gift, then stiffness, ahead of stretch. High doses hurt cold-weather relaxation, though. Balancing gains and losses, the authors recommend a dose of about 22 percent, which met road specifications in their tests.
Catalog record
| CREATOR | Jinghui Hou, Xiaogang Guo |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 54355 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |