空隙率对OGFC-13路用性能及排水功能的影响分析

发布时间：2018-02-28 02:41

本文关键词： OGFC 空隙率力学性能透水功能平衡设计　出处：《中外公路》2014年03期 　论文类型：期刊论文

【摘要】：OGFC沥青混合料是一种典型的骨架孔隙结构,规范推荐空隙率为18%~25%。大孔隙保证了混合料排水、抗滑、降噪等功能性效果的实现,但是混合料的力学性能却因孔隙的逐渐增大而降低。该研究对空隙率为18%、21%、24%的3组OGFC-13沥青混合料进行了高温、水稳定性等力学性能评价以及透水能力的功能性评价,建立了空隙率与混合料的力学性能和透水功能性的变化规律,并推荐了兼顾力学性能和透水功能的最优空隙率。
[Abstract]:OGFC asphalt mixture is a typical skeleton pore structure, the recommended voidage is 18% and 25%. Macropore ensures the functional effect of mixture drainage, anti-slide, noise reduction and so on. However, the mechanical properties of the mixture decrease with the increase of porosity. In this study, three groups of OGFC-13 asphalt mixtures with a porosity of 18% and 24% were evaluated for mechanical properties, such as high temperature, water stability, and functional evaluation of water permeability. The variation law of porosity, mechanical properties and permeability function of mixture is established, and the optimal porosity considering both mechanical property and permeability function is recommended.
【作者单位】：河南嵩阳高速公路有限公司;
【基金】：“十二五”国家科技重大专项(编号:2010ZX07320-002) 国家自然科学基金资助项目(编号:51178024)
【分类号】：U414

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