纤维配比优化改性橡胶沥青混合料路用性能研究

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中图分类号：TQ522.65；U414 文献标志码：A 文章编号：1001-5922（2025）05-0042-04

Abstract：In order to improve the performance of rubber asphalt mixture，glass fiber（GF）and lignin fiber（LF） wereselected tooptimizetheratioofsingle blendingandblending，andthenbasedonaseriesoflaboratorytests，the influenceof the two fibers ontheroad performance of rubberasphalt mixtureunder diferent mixing ratios and dosages was systematically analyzed.The results showed thatthe single or mixed blending of GF and LFfibers was beneficialto improve theroad performance and fatigue performance of rubber asphalt mixture，and the improvement effect of singledopedLFfiberon the waterstabilityof themixture was beter than thatof single doped GFfiber，but the improvement efectof single doped GFfiberon other properties was beter than thatof single doped LF fiber.Compared with the two kinds of mono-mixed fibers，the mixed fibers with appropriate proportion and amount of mixed fibers had a beter effct on the improvementof the properties of rubber asphalt mixture.It was recommended to use a blended fiber with a content of 0.3% and a ratio of glass fiber： 1 lignin fiber =2：1 ，which can further improve the service quality and service performance of the rubber asphalt mixture. Key words ：road engineering；rubber asphalt mixture ；fiber；road performance；fatigue performance

近年来，我国居民汽车拥有量迅速增长，伴随而来出现了废旧橡胶轮胎处理的难题。（剩余5000字）