Study on preparation of light oil regenerant and performance of cold recycled mixture

In order to make full use of aged asphalt, a light oil regenerant for cold mixing was prepared in this paper, and the ratio regeneration effect studied through performance test recycled asphalt. The determined by 60 °C kinematic viscosity, mass loss before after aging, asphalt three indicators. thermogravimetric analysis four-component mechanical properties mixture were 15 splitting 20 compression tests. Finally, road analyzed rutting, low-temperature bending, dry-wet When base oil: plasticizer: stable equilibrium agent: penetrant: anti-aging agent is 80:20:25:8:5, it has good effect. After adding 8% regenerant, regenerated compared with content saturates aromatics increases, resins asphaltenes decreases. close that new shows optimum 0.9%. With increased RAP content, water stability crack resistance are also improved, high-temperature reduced. However, still meets requirements specification.