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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

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

CLC Number: