Influence factors on surface crack of semi-rigid base course

WANG Hong-chang; HUANG Xiao-ming; FU Zhi

Volume 5 Issue 2

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WANG Hong-chang, HUANG Xiao-ming, FU Zhi. Influence factors on surface crack of semi-rigid base course[J]. Journal of Traffic and Transportation Engineering, 2005, 5(2): 38-41.

Citation:

WANG Hong-chang, HUANG Xiao-ming, FU Zhi. Influence factors on surface crack of semi-rigid base course[J]. Journal of Traffic and Transportation Engineering, 2005, 5(2): 38-41.

WANG Hong-chang, HUANG Xiao-ming, FU Zhi. Influence factors on surface crack of semi-rigid base course[J]. Journal of Traffic and Transportation Engineering, 2005, 5(2): 38-41.

Citation:

WANG Hong-chang, HUANG Xiao-ming, FU Zhi. Influence factors on surface crack of semi-rigid base course[J]. Journal of Traffic and Transportation Engineering, 2005, 5(2): 38-41.

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Influence factors on surface crack of semi-rigid base course

1.
School of Transportation, Southeast University, Nanjing 210096, China
2.
Research Institute of Highway, Ministry of Communications, Beijing 100088, China

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Author Bio:
Wang Hong-chang(1975-), male, doctoral student, 86-25-83791654, seuwhc@126.com
Received Date: 2004-10-14
Publish Date: 2005-06-25

Abstract

Abstract

Focusing on the severity of semi-rigid base course shrinkage crack, a finite element analysis model of 8-node isoparametric elements was established, the mechanics analysis of the influence factors on surface crack was made by FEM (finite element method) software ABAQUS. Analysing results indicate that the greater the temperature shrinkage coefficient of material is, the stronger its sensitivity to temperature dropping is; the greater the dry shrinkage coefficient of material is, the stronger its sensitivity to the ratio of water loss is; the stress intensity factor (SIF) at the surface crack tip of base course has linear increase relation with the temperature shrinkage coefficient, dry shrinkage coefficient and base course modulus. So in the design and construction of semi-rigid base course, the temperature shrinkage coefficient and dry shrinkage coefficient must be reduced, and base course must be avoided rolling in 7 d of base spreading.
- highway engineering,
- semi-rigid base course,
- surface crack,
- stress intensity factor,
- finite element analysis

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References(7)

References

[1]	Wang Jin-chang, Zhao Ying-hua. Fatigue damage analysis of asphalt pavement with reflecting cracks under varying temperature[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(6): 669-671. (in Chinese) doi: 10.3321/j.issn:1000-4548.2001.06.004
[2]	Peng Miao-juan. Computational method and its application of fracture mechanics for the asphalt pavement on semi-rigid type base course[J]. China Journal of Highway and Transport, 1998, 11(2): 30-38. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL802.004.htm
[3]	Wu Gan-chang. The analysis of pavement temperature field of multi-layer system[J]. China Journal of Highway and Transport, 1992, 5(4): 17-25. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL199204002.htm
[4]	Wu Gan-chang, Ling Tian-qing. The analysis of developing mechanism of thermal crack of the semi-rigid roadbase[J]. China Journal of Highway and Transport, 1998, 11(1): 21-28. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL801.003.htm
[5]	Zheng Jian-long, Guan Hong-xin. A finite element analysis based on thermal viscoelasticity theory of reflective crack resulting from low temperature shrinkage[J]. China Journal of Highway and Transport, 2001, 14(3): 1-5. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200103001.htm
[6]	Lu Wen-xue. Analysis of drying shrinkage procedure of semirigid base course during maintenance[J]. Highway, 2002, 12 (12): 132-135. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200212045.htm
[7]	Wu Gan-chang, Zhang Gan-sheng. Thermal stress intensity factor analysis for asphalt concrete pavement[J]. China Journal of Highway and Transport, 1996, 9(1): 37-44. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL601.005.htm