[1] Bian FenglanZhao YongliHuang Xiaoming, Wang Zhen,. Experimental study of water aging on asphaltduring service life of pavements [J]. Journal of Southeast University (English Edition), 2010, 26 (4): 618-621. [doi:10.3969/j.issn.1003-7985.2010.04.024]

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Experimental study of water aging on asphaltduring service life of pavements()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

26

Issue:

2010 4

Page:

618-621

Research Field:

Traffic and Transportation Engineering

Publishing date:

2010-12-30

Info

Title:

Experimental study of water aging on asphaltduring service life of pavements

Author(s):

Bian FenglanZhao YongliHuang Xiaoming;  Wang Zhen

School of Transportation, Southeast University, Nanjing 210096, China

Keywords:

asphalt;  water aging;  SHRP method;  service life

PACS:

U416.2

DOI:

10.3969/j.issn.1003-7985.2010.04.024

Abstract:

In order to further simulate the real condition of pavements during the service life, moisture is considered in long-term aging tests based on the existing researches about thermal aging and oxidation aging of asphalt. Water is injected into the pressure aging vessel(PAV)to simulate the aging process during the service life. The performance-based strategic highway research program(SHRP)parameters G^*/sin δ and S(t)are adopted to evaluate the high-temperature properties and low-temperature properties of the aged asphalt, respectively. The Thailand 90^# asphalt, the modified Thailand 90^# asphalt and the Shell 70^# asphalt are used in the test. It is found that the moisture has a significant influence on parameter G^*/sin δ when combined with heat and oxygen, so water aging makes high-temperature performance decay more seriously. But the low-temperature performance does not change remarkably after water aging. Since the influences of temperature, oxygen and water are taken into account in the PAV test, the accuracy of asphalt aging tests can be improved and the long-term aging process of asphalt pavement can be exactly simulated.

References:

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Memo

Memo:

Biographies: Bian Fenglan(1968—), female, graduate; Huang Xiaoming(corresponding author), male, doctor, professor, huangxm@seu.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.50878054).
Citation: Bian Fenglan, Zhao Yongli, Huang Xiaoming, et al. Experimental study of water aging on asphalt during service life of pavements[J].Journal of Southeast University(English Edition), 2010, 26(4):618-621.

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