布敦岩沥青改性沥青混合料路用性能的对比

Comparative study on the pavement performance of Buton rock modified asphalt mixture

为揭示布敦岩沥青改性沥青混合料所具有的优越路用性能,通过3种沥青混合料(布敦岩沥青改性沥青混合料、SBS改性沥青混合料及基质沥青混合料等)的残留稳定度试验、冻融劈裂强度试验、车辙试验、低温弯曲试验及疲劳试验,对比分析了三者的水稳定性、高温稳定性、低温抗裂性及抗疲劳性能。研究结果表明:布敦岩沥青改性沥青混合料的水稳定性、高温稳定性及抗疲劳性均优于SBS改性沥青的,更优于基质沥青混合料的。三者的低温抗裂性均能满足技术规范要求,该研究成果为布敦岩沥青的进一步应用提供了参考。

In order to reveal the superior road performance of Buton rock asphalt（BRA） modified asphalt mixture, the residual stability tests, freeze-thaw splitting strength tests, rutting tests,low temperature bending tests and fatigue tests were carried out for BRA modified asphalt mixture,SBS modified asphalt mixture and neat asphalt mixture. And then, the water stability,high temperature stability, low temperature cracking resistance and fatigue resistance were analyzed comparatively. The results indicated that the performance of Buton rock asphalt modified asphalt mixture are better than that of SBS modified asphalt, mixture and the neat asphalt mixture in water stability, high temperature stability and fatigue resistance. It supplies a better reference value for the further applications of Buton rock asphalt.