丹霍线Duroflex■沥青混合料试验路芯样性能评定分析

Performance Evaluation and Analysis of Test Road Core Sample of Duroflex■ Asphalt Mixture in Danhuo Line

Duroflex添加剂作为一种新型沥青混凝土抗车辙剂,在辽宁省的应用较少,为有效地评价其实际应用效果,对本溪市丹霍线Duroflex试验路芯样进行了Duroflex改性沥青混合料和SBS改性沥青混合料性能对比研究,研究结果表明:Duroflex改性沥青混合料高温性能优于SBS改性沥青混合料,常温性能两者相近,但低温性能明显低于SBS改性沥青混合料,因此在材料应用中应注意Duroflex改性沥青混合料的应用层位和低温开裂问题。

Duroflex?additive is a new type of anti-rutting agent for asphalt concrete,which is rarely used in Liaoning province.In order to effectively evaluate its practical application effect,the research on the performance of Duroflex?and SBS modified asphalt mixtures for Duroflex?test road core samples of Danhuo Line in Benxi city is made comparatively.The research results show that:the high temperature performance of Duroflex?modified asphalt mixture is superior to that of SBS modified asphalt mixture,their normal temperature performance is similar,but its low temperature performance is lower than that of SBS modified asphalt mixture.Therefore,attention should be paid to the application layer and low temperature cracking of Duroflex?modified asphalt mixture in material application.