Funding for this research was provided by:
National Natural Science Foundation of China (51478054)
National Key Research and Development Program of China (2017YFC0805300)
Education Department of Hunan Province (17A008)
Jiangxi Communications Department Program (2013C0011)
Open Research Fund of Science and Technology Innovation Platform of State Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology (kfj150103)
Article History
Received: 15 December 2017
Revised: 24 March 2018
Accepted: 30 April 2018
First Online: 30 May 2018