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| 集料表观形态与沥青混合料性能相关性分析 |
| Analysis of Correlation between Aggregate Apparent Morphology and Asphalt Mixture Performance |
| 投稿时间：2019-03-28 |
| DOI：10.16018/j.cnki.cn32-1650/n.201903010 |
| 中文关键词: 道路工程 集料 表观形态指标 精细加工 灰关联分析 |
| 英文关键词: road engineering aggregate apparent morphology index fine-processed grey relation analysis |
| 基金项目:重庆交通大学研究生科创基金项目(2018S0113)；重庆交通大学研究生科创基金项目(2018S0107) |
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| 中文摘要: |
| 采用集料图像测试系统(AIMS Ⅱ)分别测定普通集料和广东省中山集料厂精细加工集料的二维形状指数、棱角性指数、纹理指数、球度指数等4个表观形态指标，并进行比较分析。按1∶1的比例混合普通集料和精细加工集料，将其定义为特定组合集料，分别用3种不同集料制备AC-13混合料和SMA-13混合料，采用室内试验测试了不同沥青混合料的高温稳定性和水稳定性，并运用灰关联分析方法分析各集料表观形态指标对混合料性能影响的显著程度。研究认为，精细加工工艺能提升集料表观形态指标；棱角性指数对混合料高温性能影响最为显著，纹理指数对混合料水稳定性影响最为显著。 |
| 英文摘要: |
| In this paper, the aggregate image test system(AIMS II)is used to determine the two-dimensional shape index, the angular index, the angular index, the texture index and the sphericity index of the ordinary aggregate and the fine processing aggregate of the Zhongshan Aggregate Factory in Guangdong Province. And it carries on the comparative analysis. AC-13 and SMA-13 mixtures were prepared by mixing common aggregates and Fine-processed aggregates in a ratio of 1∶1 and defining them as specific aggregates. The high temperature stability and water stability of different asphalt mixtures were tested by laboratory tests, and the significance of the apparent morphological indexes of aggregates on the performance of mixtures was analyzed by grey relational analysis method. The results show that fine processing technology can improve the apparent morphological index of aggregates, the angular index has the most significant impact on the high temperature performance of the mixture, and the texture index has the most significant impact on the water stability of the mixture. |
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