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| 沥青混合料体积参数VMA、VCA与路用性能关系研究 |
| Research on Relationship Between Volume Parameters VMA, VCA and Pavement Performance of Asphalt Mixture |
| 投稿时间：2017-11-12 |
| DOI：10.16018/j.cnki.cn32-1650/n.201802001 |
| 中文关键词: 沥青混合料 VMA VCAratio 车辙 冻融劈裂试验 |
| 英文关键词: asphalt mixture VMA, VCAratio rutting freeze-thaw splitting test |
| 基金项目:广西壮族自治区大学生创新创业训练项目(201710595222) |
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| 中文摘要: |
| 为了揭示沥青混合料空间结构与路用性能关系，以VCAratio、VMA为混合料的空间结构指标，通过室内车辙试验、弯曲小梁试验和冻融劈裂试验研究了SMA-13、OGFC-13、AC-13等混合料的空间结构与路用性能关系。研究结果表明:VCAratio可反映混合料的骨架结构，细集料对VMA和骨架结构的形成和稳定性有一定的影响，骨架结构对弯拉强度的贡献率有限，以冻融劈裂试验评价混合料的水稳定性存在一定的局限性。研究结果为沥青混合料的选用和设计提供指导。 |
| 英文摘要: |
| To reveal the relationship between spatial structure and pavement performance of asphalt mixture, using VCAratio and VMA as the spatial structure index of mixture, the relationship between spatial structure and pavement performance of mixtures such as SMA-13, OGFC-13, AC-13 was studied by indoor rutting test, bending trabeculae test, and freeze-thaw splitting test. The results show that VCAratio can reflect the skeleton structure of the mixture. Fine aggregate has a certain effect on the formation and stability of VMA and skeleton structure. Skeleton structure has limited contribution to bending tensile strength. There are some limitations in evaluating the water stability of mixtures by freeze-thaw splitting test. The research results provide guidance for the selection and design of asphalt mixture. |
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