中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2025, Vol. 44 ›› Issue (1): 25-32.DOI: 10.3969/j.issn.1674-0696.2025.01.04

• 交通基础设施工程 • 上一篇    

粗集料形态对沥青路面抗滑性能影响研究

汪海年1,李英凯1,王惠敏2,李廉1,宋浩然1   

  1. (1. 长安大学 公路学院,陕西 西安 710064;2. 浙江交投高速公路建设管理有限公司,浙江 杭州 310024)
  • 收稿日期:2024-03-11 修回日期:2024-04-19 发布日期:2025-01-20
  • 作者简介:汪海年(1977—),男,江苏涟水人,教授,博士,主要从事路基路面工程方面的研究。E-mail:wanghn@chd.edu.cn 通信作者:李英凯(2000—),男,辽宁朝阳人,硕士研究生,主要从事路基路面工程方面的研究。E-mail:2327964828@qq.com
  • 基金资助:
    内蒙古自治区交通运输科技项目(NJ-2021-03);国家自然科学基金项目(52078048)

Influence of Coarse Aggregate Morphology on the Anti-slip Performance of Asphalt Pavement

WANG Hainian1, LI Yingkai1, WANG Huimin2, LI Lian1, SONG Haoran1   

  1. (1. School of Highway, Chang’an University, Xi’an 710064, Shaanxi, China; 2. Zhejiang Jiaotou Expressway Construction Management Co., Ltd., Hangzhou 310024, Zhejiang, China)
  • Received:2024-03-11 Revised:2024-04-19 Published:2025-01-20

摘要: 为进一步明确粗集料形态特征与沥青路面抗滑性能的关系,基于AIMS II设备获取了3种岩性4种整形程度粗集料的梯度棱角、纹理指标、球度、形态综合指标等形态指标,采用摆式摩擦仪和激光扫描仪获取沥青混合料表层的BPN20、平均构造深度MTD、形态参数、分形维数指标等抗滑性能评价指标,通过Pearson相关系数法建立粗集料形态指标与沥青混合料表层抗滑性能评价指标的关系。结果表明:混合粗集料加权期望梯度棱角值与路面BPN20值有较大相关度,相关系数达到0.9以上,建议在施工前提高粗集料的梯度棱角值,以确保沥青路面具有可靠的抗滑性能。研究成果有利于进一步改善沥青路面的抗滑性能。

关键词: 道路工程; 粗集料;形态特征;抗滑性能;Pearson相关系数法

Abstract: In order to further clarify the relationship between the morphology characteristics of coarse aggregate and the skid resistance performance of asphalt pavement, based on the AIMS II equipment, the morphology indexes of the coarse aggregates with 3 kinds of lithologies and 4 kinds of shaping degrees such as gradient prism, texture index, sphericity, and morphology comprehensive indexes were obtained. And the pendulum friction meter and the laser scanner were used to obtain anti-slip performance evaluation indexes such as BPN20, the average tectonic depth MTD, the morphology parameter and fractal dimension indexes of the asphalt mixture surface layer. The relationship between the morphology indexes of coarse aggregate and the anti-slip performance evaluation indexes of asphalt mixture surface layer was established by Pearson correlation coefficient method. The results show that the weighted expected gradient prism value of the mixed coarse aggregate has a large correlation with the BPN20 value of the pavement, and the correlation coefficient reaches more than 0.9. It is recommended that the gradient prism value of the coarse aggregate should be increased before the construction, so as to ensure that the asphalt pavement has a reliable anti-slip performance. The research results are useful for further improving the anti-slip performance of asphalt pavement.

Key words: highway engineering; coarse aggregate; morphological characteristics; anti-slip performance; Pearson’s correlation coefficient method

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