Test and Numerical Simulation Study on Ice-Breaking of a Rubber Crumbs Asphalt Pavement

Abstract:

A laboratory ice-breaking test was employed for an asphalt pavement with different dosage of rubber crumbs to study the ice-breaking effects by a self-developed road ice-breaking simulating tester. The mesoscopic model of rubber crumbs asphalt pavement structure with 2mm ice layer was established using the discrete element method, and the mesoscopic responses of rubber crumbs asphalt pavement structure were simulated under the standard axle loading. The results indicate that the weighted average rebound amounts of BPN with 3% rubber crumbs increase by 11.45% and 1.46%, respectively, compared with that of 2% and 4% rubber crumbs. The weighted average rebound rates of BPN with 3% rubber crumbs increase by 11.22% and 3.06%, respectively, compared with that of 2% and 4% rubber crumbs. For 3% rubber crumbs, the maximum contact forces in this pavement structure are the biggest which are 2.705×10³N before loading and 2.706×10³N after loading, and its strain energy is 1.34 times that of 2% rubber crumbs, 1.25 times that of 4% rubber crumbs. In addition, the results of numerical simulation are consistent with the results laboratory test.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 721-724
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.721
• Online since: December 2014
• Authors: Hong Wei Zhang, Ming Feng Chang*, Chun Lei Xie, Zhen Zheng Liu
• Keywords: British Pendulum Number (BPN), Discrete Element Method, Ice-Breaking, Road Engineering, Rubber Crumbs Asphalt Pavement

References

[1] P. A. Cundall. Proeeedings of Symposium of the International Society of Rock Meehanics. Rotterdam: Balkema, 1971, p.8.

[2] P. A. Cundall. London: University of London, (1971).

[3] Z. P. You and Y. Liu. International Journal of Pavement Research and Technology, Vol. 6, No. 6(2013), p.689.

[4] Y. Liu, Z. P. You and Y. Zhao. Construction and Building Materials, No. 37 (2012), p.775.

[5] J. Chen and X. M. Huang. Journal of South China University of Technology: Natural Science Edition, Vol. 40, No. 7 (2012), p.21. (in Chinese).

[6] M. F. Chang, J. Z. Pei and S. F. Chen. Journal of Traffic and Transportation Engineering, Vol. 10, No. 5 (2010), p.1. (in Chinese).

[7] Y. Z. Chen and Z. X. Li. Journal of Central South University: Science and Technology, Vol. 44, No. 5 (2013), p.2073. (in Chinese).

[8] X. N. Ma, X C Wang and L. L. Yao. Road Machinery & Construction Mechanization, Vol. 30, No. 1 (2013), p.37. (in Chinese).

[9] H. W. Zhang, S. Han, L. J. Zhang and X. X. Lv. Journal of Chang'an University: Natural Science Edition, Vol. 2, No. 8 (2011), p.76. (in Chinese).