高温稳定性不足是南方高温地区沥青混凝土路面发生早期破坏的主要根源之一。通过对不同掺量矿物纤维沥青混合料的高温稳定、水稳性、抗压回弹模量和劈裂抗拉强度进行比对试验,提出了基于性能-成本比的矿物纤维最佳掺量,并深入分析了矿物纤维在最佳掺量时,对沥青混合料路用性能的改善效果。 Insufficient high temperature stability is one of the main causes of early failure of asphalt concrete pavement in the high temperature areas in the south. By comparing the high temperature stability, water stability, compressive resilience modulus and splitting tensile strength of mineral asphalt mixtures with different content, the optimal dosage of mineral fiber based on performance-cost ratio was proposed. The effect of improving the road performance of asphalt mixture with the best dosage of mineral fiber is analyzed.