| 蒋应军,倪辰秧,张宇,邓长清,张伟,杨迪锋,薛金顺.垂直振动压实法成型SMA-13混合料体积参数设计标准研究[J].,2021,61(2):189-196 |
| 垂直振动压实法成型SMA-13混合料体积参数设计标准研究 |
| Study of design standard for volume parameters of SMA-13 mixture formed by vertical vibration compaction method |
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| DOI：10.7511/dllgxb202102010 |
| 中文关键词:垂直振动压实法体积参数力学性能设计标准 |
| 英文关键词:vertical vibration compaction methodvolume parametersmechanical propertiesdesign standards |
| 基金项目:吉林省交通运输科技计划项目(2017ZDGC-7). |
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| 中文摘要: |
| 为研究体积参数对SMA-13 混合料性能的影响,采用垂直振动压实法(vertical vibration compaction method,VVCM)成型SMA-13混合料试件,评价了VVCM 的可靠性,并以力学性能最佳为原则,提出了MA-13混合料体积参数标准.结果表明:SMA-13混合料各力学性能均随空隙率的增大呈凸曲线变化,建议空隙率设计标准为2.5%~4.0%;力学性能均随沥青饱和度的增大呈凸曲线变化,建议74%~83%为沥青饱和度设计标准;与空隙率、沥青饱和度相比,矿料间隙率的大小无法准确反映混合料性能的优劣,对于矿料间隙率设计标准,建议其最小值取14.5%. |
| 英文摘要: |
| In order to study the influence of volume parameters on the performance of SMA 13 mixture, the vertical vibration compaction method (VVCM) is used to form SMA 13 mixture specimen, and the reliability of VVCM is evaluated. Based on the principle of the best mechanical properties, the volume parameter standard of SMA 13 mixture is proposed. The results show that: the mechanical properties of SMA 13 mixture show convex curve change with the increase of void ratio, and the recommended void ratio design standard is 2.5% 4.0%; the mechanical properties also show convex curve change with the increase of voids filled with asphalt (VFA), and 74% 83% is recommended as VFA design standard; compared with void ratio and VFA, the voids in mineral aggregate (VMA) cannot accurately reflect the performance of the mixture. For VMA design standard, the recommended minimum value is 14.5%. |
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