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选用某省常用3种中面层级配Sup20、AC-20F改进型、AC-20F,分别在多个不同沥青用量下成型沥青混合料试件,进行车辙试验,测得10000次车辙深度及动稳定度数据,试验数据表明:Sup20、AC-20F改进型级配类型沥青混合料的抗车辙性能较好,且沥青用量在最佳沥青用量上下一定范围内波动时,抗车辙性能均有一定程度的提升。提出了适合该省的高抗车辙性能的中面层最佳级配范围与沥清用量范围。
Three kinds of mid-level gradation Sup20, AC-20F modified and AC-20F commonly used in a certain province were selected to test the rutting test and the rutting depth of 10,000 specimens were measured under different pitches of asphalt. The stability data and experimental data show that the anti-rutting performance of Sup20 and AC-20F modified gradation type asphalt mixture is better, and the rutting resistance of asphalt mixture with certain asphalt content fluctuates within the range of the optimum asphalt dosage The promotion. Proposed for the province's high rutting performance of the surface layer with the best range and bitumen dosage range.