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基于抗滑性能的SMA配合比设计

DOI: 10.3969/j.issn.1674-0696.2015.04.09, PP. 52-56

Keywords: 道路工程,抗滑特性,SMA,典型灰关联度,级配范围,roadengineering,skid-resistance,StoneMasticAsphalt(SMA),typicalgraycorrelationdegree,gradationrange

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Abstract:

:？为了研究各参数对SMA路面抗滑性能的影响并指导配合比设计，通过变化配合比设计相关参数，包括各控制筛孔通过率和沥青用量，进行正交试验设计。利用典型灰关联度量化各参数对抗滑性能的影响程度。结果表明：随着公称最大粒径通过率的增大，SMA路面的抗滑性能逐渐降低；对于SMA-13，随着9.5mm筛孔通过率的增加，路面的抗滑性能先增大后减小；当关键筛孔4.75mm通过率增大时，抗滑性能先减小后增大；随着2.36mm筛孔通过率的增加，抗滑性能呈增大趋势；随着沥青用量的增加，SMA路面的抗滑性能逐渐降低；各参数对抗滑性能影响程度大小依次为：最大粒径通过率﹥关键筛孔通过率﹥沥青用量﹥最大粒径次一级筛孔通过率、关键筛孔次一级筛孔通过率。得出抗滑性能良好的SMA级配范围。

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