为提升湿热地区沥青路面抗滑性能，采用88#煅烧铝矾土设计高抗滑沥青面层混合料SMA-7，通过灰靶决策理论确定煅烧铝矾土最佳掺量，并对SMA-7的路用性能进行评价。在优化SMA-7矿料级配范围基础上，确定88#煅烧铝矾土的掺量；通过车辙试验、小梁低温弯曲试验和冻融劈裂试验等分别评价SMA-7沥青混合料的高温稳定性、低温抗裂性与水稳定性；利用自主研发的三轮加速磨光仪对试件进行多次磨光，并采用动态摩擦系数测定仪测定SMA-7在不同模拟速度条件下的动态摩擦系数，以探究SMA-7沥青混合料的抗滑性能演化规律；在综合考虑沥青混合料各项指标基础上，使用灰靶决策理论计算88#煅烧铝矾土的最佳掺量。结果表明：采用88#煅烧铝矾土部分掺代石灰岩可显著提升沥青混合料的综合性能，其中沥青混合料的抗滑持久性、高温稳定性提升效果最明显；经灰靶决策理论计算，在沥青混合料中掺入70%~80%煅烧铝矾土时，SMA-7的路用性能最佳。

To improve the skid resistance of asphalt pavements in hot and humid areas, 88# calcined bauxite was used to design a high skid-resistant SMA-7 asphalt mixture for road surfaces. The optimal dosage of calcined bauxite was determined using the grey target decision-making theory, and the road performance of SMA-7 was evaluated. Based on optimizing the gradation range of SMA-7 mineral aggregates, the appropriate amount of 88# calcined bauxite was determined. The rutting test, low-temperature beam bending test, and freeze-thaw splitting test were conducted to evaluate the high-temperature stability, low-temperature crack resistance, and water stability of SMA-7. The specimens were abraded multiple times using a three-wheel polishing device, and the dynamic friction coefficient was measured with a dynamic friction tester under different simulated speed conditions to investigate the evolution of the skid resistance of the SMA-7 asphalt mixture. By comprehensively considering various performance indicators of the asphalt mixtures, the optimal dosage of 88# calcined bauxite in the asphalt mixtures was calculated using the grey target decision-making theory. The results show that partially replacing limestone with 88# calcined bauxite can significantly improve the overall road performance of SMA-7 asphalt mixtures, with the most notable enhancements in skid resistance durability and high-temperature stability. According to calculations based on the grey target decision theory, the road performance of SMA-7 is optimal when 70% to 80% calcined bauxite is incorporated into the asphalt mixture.