Study on Low-Temperature Performance of Asphalt Mixture Impacted by Modified Asphalt and Polyester Fibers

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Low temperature crack plays an important role on the road safety and comfort. Indoor experiments were carried out to study the crack resistance of asphalt mixture. The results show that: fiber and SBS modified asphalt can increase the failure strain energy, the failure stress and the failure strain and reduce stiffness, thus can significantly improve the anti-cracking ability at low temperature; at a critical temperature of about -10°C, the splitting strength achieve a peak value correspondingly, and the asphalt mixture transforms from the viscoelastic status to the brittle status; the failure load and the failure strain of the three kinds of mixtures are in the sequence of modified asphalt mixture> fiber mixture> common asphalt mixture; the results of the J-integral strain energy test show that fiber asphalt mixture has the maximum resistance curve slope, which means it may have better anti-cracking ability than the SBS modified asphalt mixture; the fracture stiffness can be introduced to effectively evaluate the crack resistance of asphalt mixture.

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Periodical:

Edited by:

Weijun Yang and Qiusheng Li

Pages:

3886-3889

DOI:

10.4028/www.scientific.net/AMM.204-208.3886

Citation:

X. Yu and J. B. Huang, "Study on Low-Temperature Performance of Asphalt Mixture Impacted by Modified Asphalt and Polyester Fibers", Applied Mechanics and Materials, Vols. 204-208, pp. 3886-3889, 2012

Online since:

October 2012

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$38.00

[1] J. L. Zheng, Z. G. Zhou, Q. S. Zhang. Asphalt Pavement Crack Design Theory and Method [M] Beijing: China Communications Press, (2002).

[2] W. M. Lv. Asphalt Mixture Design Principles and Methods [M], Shanghai: Tongji University Press, (2001).

[3] K. W. Kim, M. E. Hussein. Variation of fracture toughness of asphalt concrete under low temperatures [J]. Construction and Building materials, Vol. 11(7-8) (1997) , pp.403-411.

DOI: 10.1016/s0950-0618(97)00030-5

[4] B. Huang, G. Q. Li, Mohammad L N. Analytical modeling and experimental study of tensile strength of asphalt concrete composite at low temperatures [J]. Composites Part B: Engineering, Vol. 34(8) (2003), pp.705-714.

DOI: 10.1016/s1359-8368(03)00079-9

[5] X. J. Li, M. Marasteanu. The fracture process zone in asphalt mixture at low temperature [J]. Engineering Fracture Mechanics, Vol. 77 (2010) , p.1175–1190.

DOI: 10.1016/j.engfracmech.2010.02.018

[6] JTGE20-2011. Highway asphalt and asphalt mixture testing procedures [S].

[7] J. H. Liu, R. Y. Wang, Y. Liu. Using the J-integral to evaluate the crack resistance of asphalt mixture [J]. Journal of Solid Mechanics, Vol. 31 (1) (2010), pp.16-22.

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