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基于Superpave技术的沥青路面再生研究

, PP. 92-95

Keywords: 废旧沥青砼路面,最佳沥青含量,车辙深度,间接拉伸强度,回弹模量,reclaimedasphaltpavement,optimumasphaltcontent,rutdepth,indirecttensilestrength,resilientmodulus

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Abstract:

:?废旧沥青路面再生是沥青路面修建的新技术,它不仅节约资源、减少道路修建成本,而且改善相关环境.然而,这些材料在Superpave设计规范中没有详细的说明,因此,有必要了解这些废旧沥青混合料是否能够在Superpave设计中使用.通过使用Superpave技术对沥青再生混合料进行的试验,表明掺配废旧沥青混合料能减少新的沥青含量,增加沥青砼间接拉伸强度.同时,掺配废旧料的沥青再生砼也在增强沥青路面的车辙抵抗性能、沥青砼间接回弹模量和影响疲劳寿命方面起着重要的作用.

References

[1]  AASHTO T312:Preparing and determining the density of hot mix asphalt specimens by means of the Superpave gyratory compactor[S].
[2]  AASHTO T321:Standard method of test for determining the fatigue life of compacted hot-mix asphalt(HMA)Subjected to Repeated Flexural Bending[S].
[3]  Asphalt Institute.Superpave mix design,Superpave se-ries No.2(SP-2),Third Edition[M].Kentucky,Lexington,2001.
[4]  AASHTO PP 19:Volumetric analysis of compacted hot mix asphalt[S].
[5]  Mcdaniel R S,Soleymanl H,Shah A.Use of reclaimed asphalt pavement(RAP)under Superpave specifications[M].FHWA/IN/JTRP-2002/6.
[6]  Kandhal P S,Cooley L A.Evaluation of permanent de-formation of asphalt mixtures using loaded wheel tester[J].Journal of the Association of Asphalt Paving Technologists,2002,71:739-753.

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