Calculation method of asphalt film thickness in mixture

Hou Yun; Wei Dao-xin; Tian Bo; Liu Yong-xiang

Volume 7 Issue 4

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Hou Yun, Wei Dao-xin, Tian Bo, Liu Yong-xiang. Calculation method of asphalt film thickness in mixture[J]. Journal of Traffic and Transportation Engineering, 2007, 7(4): 58-62.

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Hou Yun, Wei Dao-xin, Tian Bo, Liu Yong-xiang. Calculation method of asphalt film thickness in mixture[J]. Journal of Traffic and Transportation Engineering, 2007, 7(4): 58-62.

Hou Yun, Wei Dao-xin, Tian Bo, Liu Yong-xiang. Calculation method of asphalt film thickness in mixture[J]. Journal of Traffic and Transportation Engineering, 2007, 7(4): 58-62.

Citation:

Hou Yun, Wei Dao-xin, Tian Bo, Liu Yong-xiang. Calculation method of asphalt film thickness in mixture[J]. Journal of Traffic and Transportation Engineering, 2007, 7(4): 58-62.

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Calculation method of asphalt film thickness in mixture

1.
China Highway Engineering Consulting Co.Ltd., Beijing 100097, China
2.
School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China
3.
Research Institute of Highway of Ministry of Communications, Beijing 100088, China
4.
Department of Communications of Inner Mongolia, Hohhot 011500, Inner Mongolia, China

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Author Bio:
Hou Yun (1975-), male, EngD, senior engineer, +86-10-64852943, cwhhy@263.net
Received Date: 2006-12-09
Publish Date: 2007-08-25

Abstract

Abstract

In order to accurately compute the asphalt film thickness of asphalt mixture, the particle-size of mineral, the compaction degree of asphalt mixture and asphalt ratio were considered, the particle-size of mineral was measured by using HORIBA-300 instrument, the particle-size distribution of mineral was analyzed, the concept of asphalt separation film was introduced, and a computation model of asphalt film thickness was put forward.The sample of asphalt mixture was molded by using rotary compaction instrument, and the computation values and measure values of asphalt film thickness were compared. Comparison result shows that the asphalt content range of asphalt mixture is from 4.55% to 4.85% with the new method, the range is from 4.20% to 5.20% with conventional method, measured optimal content is 4.70%, obviously, the computation precision of the proposed method is higher.
- pavement engineering,
- asphalt mixture,
- asphalt film thickness,
- optimum asphalt content,
- particle-size distribution of mineral

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References(15)

References

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