合成材料老化与应用2024，Vol.53Issue(4)：36-39,103,5.
超声-费托蜡协同降黏对石油沥青工程流变特性的影响研究
Study on the Influence of Ultrasonic-FT Wax Synergistic Viscosity Reduction on Engineering Rheological Properties of Petroleum Asphalt
摘要
Abstract
Incorporating F-T wax to reduce the high-temperature viscosity of asphalt is one of the methods for warm-mix asphalt.Previous studies have shown that the action of power ultrasound can significantly improve the flowability of viscous asphalt,indicating that the synergistic application of both methods may enhance the technical and economic benefits of engineering projects.In this study,a self-made ultrasound treatment device was used to treat asphalt samples with varying dosages of F-T wax.The asphalt was subjected to rheological tests across the full temperature range using various methods including viscosity measurements,dynamic shear rheometer(DSR),and bending beam rheometer(BBR).The test results show that ultrasound treatment further reduced the 135 ℃ viscosity of F-T wax-modified asphalt by 11％to 18％,leading to a continued decrease of 5～10 ℃ in the corresponding optimal mixing and compaction temperatures.At service temperatures,ultrasound-treated warm-mix asphalt exhibited enhanced resistance to rutting,slightly decreased fatigue performance,and comparable low-temperature creep properties before and after ultrasound treatment.The synergistic effect of ultrasound and F-T wax can improve the effectiveness of warm-mix asphalt or reduce the dosage of warm-mix additives.关键词
功率超声/费托蜡/降黏作用/流变特性Key words
power ultrasound/Fischer-Tropsch wax/viscosity reduction/rheological properties分类
交通工程引用本文复制引用
魏文,王黎明,宋子坤,袁浩,周辉..超声-费托蜡协同降黏对石油沥青工程流变特性的影响研究[J].合成材料老化与应用,2024,53(4):36-39,103,5.基金项目
国家自然科学基金区域创新发展联合基金项目(U20A20315) （U20A20315）
黑龙江省交通运输科技项目(HJK2023B014-3). （HJK2023B014-3）
