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为探讨短切玄武岩纤维在增强沥青混合料耐久性方面的适用性,选用AC-13和SMA-13型级配,采用小梁四点弯曲疲劳寿命试验对比研究短切玄武岩纤维沥青混合料的疲劳性能,并分析了纤维增强沥青混合料作用机理。结果表明:短切玄武岩纤维有效提高了沥青混合料的疲劳耐久性;该纤维可作为“稳定剂和增强剂”应用于沥青混合料中,以改善沥青混凝土路面的耐久性。
In order to investigate the applicability of chopped basalt fiber in enhancing the durability of asphalt mixture, the fatigue test of four-point flexural fatigue life test was used to study the fatigue of chopped basalt fiber asphalt mixture with AC-13 and SMA-13 grading Performance, and analyzed the mechanism of action of fiber reinforced asphalt mixture. The results show that the chopped basalt fiber effectively improves the fatigue durability of asphalt mixture. The fiber can be used as “stabilizer and enhancer” in asphalt mixture to improve the durability of asphalt concrete pavement.