基于集料特性的沥青混合料长期抗滑性能衰减模型
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U414

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国家自然科学基金(51878499);浙江省公路科技项目(2018H22)


Long Term Anti-Sliding Performance Attenuation Model of Asphalt Mixture Based on Aggregate Characteristics
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    摘要:

    为预测沥青混合料长期抗滑性能,采用小型加速加载试验仪对辉绿岩、玄武岩和石灰岩的3种GAC13C沥青混合料进行长期抗滑性能衰减试验,进而对集料特性与长期抗滑性能进行灰关联分析,建立了基于集料特性的长期抗滑性能衰减模型.试验结果表明,GAC13C沥青混合料的长期抗滑性能衰减速率逐渐减小直至趋于稳定;磨光值是长期抗滑指标的初始值和最终值的主要影响因素,压碎值是衰减速率的主要影响因素.

    Abstract:

    The effect of lon- term skid resistance performance of asphalt mixtures was studied in this paper. To achieve this objective, three GAC 13C asphalt mixtures including diabase, basalt, and limestone were studied using the model mobile load simulator equipment(MMLS3). Then, grey relational analysis between aggregate characteristics and the longterm skidresistance performance was conducted. After that, a long-term skid-resistance performance prediction model based on aggregate characteristics was developed. The test results show that with the increase of loading repetitions, the skidresistance of GAC13C descended. After a certain amount of loading repetitions, the skidresistance became stable. A high positive correlation was found between the polished value and the initial value and final value of longterm skid-resistance indexes. The crush value has a significant impact on the attenuation rate.

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丛林,谭乐,吴敏,陈芳.基于集料特性的沥青混合料长期抗滑性能衰减模型[J].同济大学学报(自然科学版),2019,47(05):0668~0672

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  • 收稿日期:2018-06-20
  • 最后修改日期:2019-03-08
  • 录用日期:2019-02-09
  • 在线发布日期: 2019-05-24
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