中国民航大学学报

• 工程技术 • 上一篇    下一篇

沥青道面修补材料和易性指标及影响因素

廖小芳1,凌建明1,章晖毓2,袁捷1   

  1. (1.同济大学道路与交通工程教育部重点实验室,上海200092;2.宁波市城建设计研究院有限公司,宁波315012)
  • 收稿日期:2012-06-08 修回日期:2012-10-18 出版日期:2014-02-24 发布日期:2014-01-02
  • 作者简介:廖小芳(1988—),男,湖南永州人,硕士,研究方向为道路与机场工程.

Workability index and influence factors of asphalt pavement repair material

LIAO Xiao-fang1,LING Jian-ming1,ZHANG Hui-yu2,YUAN Jie1   

  1. (1. Key Laboratory of Road and Traffic Engineering of Ministry of Education,Tongji University,Shanghai 200092,China;2. Ningbo Urban Construction Design Institute,Ningbo 315012,China)
  • Received:2012-06-08 Revised:2012-10-18 Online:2014-02-24 Published:2014-01-02

摘要:

按照马歇尔设计方法,双面击实75次,在进行机场沥青道面修补材料配合比设计的同时,测试马歇尔试件双面击实50 次的空隙率和试件高度,提出了机场沥青混合料施工和易性的评价指标“h0”,将其作为配合比设计的一个参考指标,并分析了油石比、级配组成以及击实温度对机场沥青混合料施工和易性的影响。试验研究表明:沥青用量越多,施工和易性越好,粗集料用量越多,施工和易性越差,温度越高,施工和易性越好。

关键词: 机场工程, 沥青道面, 修补材料, 施工和易性, SMA-13

Abstract:

According to Marshall Design method,after 75 times compaction for each face of Marshall sample,the proportion design of asphalt pavement repair material is presented. Void volume and height of Marshall sample with 50 times compacted are tested,evaluation indexes of workability (h0)for airport mix asphalt is proposed. (h0)is regarded as one of the proportion design indexes. The influence of bitumen aggregate ratio,gradation composition and compaction temperature to workability of airport mix asphalt are analyzed. These studies indicate that the more bitumen,the better workability is,the more coarse aggregate,the worse workability is,the higher temperature,the better workability is.

Key words: airport engineering, asphalt pavement, repair material, workability, SMA-13

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