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内蒙古乌海市地处大陆深处夏季炎热高温,冬季寒冷,昼夜温差大。桥面铺装工作环境恶劣,易在铺装体系层间和层内形成较大的剪切应力集中,造成铺装层脱落、滑移、拥包等破坏形式。本文选择AC-16型普通沥青纤维增强沥青混凝土和AC-16型改性沥青纤维增强沥青混凝土作为下面层材料方案,AC-13型普通沥青纤维增强沥青混凝土和AC-13型改性沥青纤维增强沥青混凝土作为上面层材料方案,通过高温稳定性、低温抗冻性和水稳定性试验研究发现:上面层AC-13纤维增强沥青混合料配合比试验数据与下面层AC-16纤维增强沥青混合料试验数据有很好的相关性,两者在设计过程中表现出的混合料性能变化基本一致,纤维在混合料中的作用均很明显,同时纤维性能比对效果明显,改性沥青混合料性能明显优于普通沥青混合料。
Wuhai City, Inner Mongolia is located in the depths of the mainland hot summer heat, cold winter, large temperature difference between day and night. Deck pavement working environment is poor, easy in the pavement system and layers to form a large shear stress concentration, resulting in pavement layer off, slipping, possession of packages and other forms of destruction. In this paper, AC-16 ordinary asphalt fiber reinforced asphalt concrete and AC-16 modified asphalt fiber reinforced asphalt concrete as the underlying material program, AC-13 ordinary asphalt fiber reinforced asphalt concrete and AC-13 modified asphalt fiber reinforced Asphalt concrete as the top layer material program, through the high temperature stability, low temperature frost resistance and water stability test study found that: AC-13 fiber reinforced asphalt mixture ratio test data and below AC-16 fiber reinforced asphalt mixture The experimental data have good correlation. The performance of the mixture in the design process is basically the same, the effect of the fiber in the mixture is obvious, and the effect of the fiber performance is obvious. The performance of the modified asphalt mixture Significantly better than ordinary asphalt mixture.