Rheological Properties of Waterborne Resin-Based Modified Emulsified Asphalt for Micro-Surfacing
The technical maintenance quality of micro-surface for airport pavement is for the performance of its agglutination material to decide.In order to clarify the effect of water-based resin polymer content on the rheological properties of modified emulsified asphalt for micro-surfacing,WER/WPU modified emulsi-fied asphalt and WER/WPU/EVA modified emulsified asphalt for micro-surfacing are prepared.With the help of dynamic shear rheological test,linear amplitude scanning test and bending beam rheological test,the high temperature deformation resistance,medium temperature fatigue performance and low tempera-ture creep characteristics of modified emulsified asphalt under different water-based resin polymer content are proved.The rheological properties of WER/WPU modified emulsified asphalt and WER/WPU/EVA modified emulsified asphalt are compared and analyzed.The anti-deformation and anti-cracking ability of the modified emulsified asphalt in the existing research are compared and evaluated.The results show that the high temperature deformation resistance,medium temperature fatigue life and low temperature flexi-bility of emulsified asphalt material are effectively improved after resin polymer is being added,and the improvement range increases with the increase of water-based resin polymer content.The high tempera-ture deformation resistance of WER/WPU/EVA-15 modified emulsified asphalt is slightly better than that of WER/WPU-15 modified emulsified asphalt,but its fatigue characteristics and low temperature crack re-sistance are slightly lower than that of WER/WPU-15 modified emulsified asphalt.The resin-based modi-fied emulsified asphalt developed in this paper is significant advanced.
万方数据
维普
