【摘要】 为评价粉胶比对SBS沥青胶浆性能的影响,采用动态剪切流变仪、弯曲梁流变仪,对4种不同粉胶比的SBS沥青胶浆的高低温性能进行研究,同时采用新型纤维沥青拉拔仪^[1]进行试验,提出失稳拉拔功的概念来反映粉胶比对沥青胶浆和纤维之间黏附性的影响,综合试验结果,确定了SBS沥青胶浆最佳粉胶比。并采用灰色关联分析法研究了温度和粉胶比对SBS沥青胶浆的车辙因子、复数黏度和相位角的影响。结果表明,粉胶比对沥青胶浆的各项性能有着较大的影响,在试验范围内,粉胶比越大,沥青胶浆的高温流变性能和其与纤维之间的黏附性也会更好,综合高低温测试结果和失稳拉拔功计算结果确定沥青胶浆最佳粉胶比为1.2;同时依据矿粉筛分结果,给出了沥青混合料设计中的粉胶比（0.075 mm通过率/有效沥青含量）,以及0.6 mm矿料通过率与有效沥青含量的比值的建议值。更多还原

【Abstract】 In order to evaluate the influence of the powder-binder ratio on the properties of SBS asphalt mortar, the dynamic shear rheometer and the bending beam rheometer were used to study the rheological properties of SBS asphalt mortar under different temperatures under four powder-binder ratios. In the meantime, the newly invented Fiber-Asphalt Drawing Instrument was used to study the effects of the powder-binder ratio on the adhesion between fibers and SBS asphalt mortar, and the failure pull out energy was used in the evaluation. After the overall consideration, the best powder-binder ratio is put forward. The grey correlation analysis method is used to study the influence of the temperature and the powder-binder ratio on the rutting factor, complex viscosity and phase angle of SBS asphalt mortar. The results show that the powder-binder ratio has a great influence on the high-temperature rheological properties of asphalt mortar. In the test range, the larger the powder-binder ratio is, the better the high temperature rheological property of asphalt mortar is, and the better the adhesion between asphalt mortar and fiber is. After considering the effect of the powder-binder ratio on the low and high temperature properties of asphalt mortar and the calculation results of the failure pull out energy, it is suggested that the best powder-binder ratio should be 1.2. In the meantime, according to the screening results of the mineral powder used in the experiment, this paper also put forward the recommended value of the powder-binder ratio(0.075 mm passing rate/effective asphalt content) and the 6 mm passing rate in the design of asphalt mixtures.更多还原