吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (06): 1494-1499.doi: 10.7964/jdxbgxb201306010

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Determination of warm-mix asphalt reasonable compaction temperature range by impact penetration test

WANG Li-ming1,2, TAN Yi-qiu1, SHI Zhen-wu2, LIU Shuang2   

  1. 1. School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150086, China;
    2. College of Civil Engineering, Northeast Forestry University, Harbin 150040, China
  • Received:2012-07-02 Online:2013-11-01 Published:2013-11-01

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Abstract:

The variable temperature penetration tests were conducted to derive the compaction temperature from hot-mix asphalt to war-mix asphalt using penetration index. It is based on the principle of analog of hot mixture equivalent shear strength. The variable temperature penetration testing method and process were investigated, and the reasonable compaction temperature ranges of four types of warm-mix asphalt were derived. Compared with variable-temperature control compaction test, the penetration test can fully reflect the impact of the change of asphalt viscosity on the workability of the mixture. The penetration test is also sensitive to temperature with the entire operating temperature range. The operation of the penetration test is easy and it takes shorter time.

Key words: road engineering, compaction temperature, warm-mix asphalt, impact penetration test, construction workability

CLC Number: 

  • U416

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