Transportation Research Congress 2016
Research on RLWT and APA Rutting Loading Mode Based on Digital Image Technology
Publication: Transportation Research Congress 2016: Innovations in Transportation Research Infrastructure
ABSTRACT
In order to compare the difference of loading mode between the RLWT (rotary loaded wheel tester) and the APA, the specimens were compacted using the same gradation under different compaction times, the rutting tests were conducted using RLWT and the APA. Moreover, the images of specimens profile were processed with digital image technology, and the equivalent diameters of coarse aggregates were extracted and analyzed. The results show that the angle between the long axis of coarse aggregate and X-axis increases gradually for RLWT, oppositely, the angle between the long axis of coarse aggregate and X-axis decreases gradually for APA, which is agree with the movement direction of aggregates in the open traffic pavement. The study indicates that it exist great difference of loading mode between the RLWT and the APA, the research for the extensive promotion of RLWT should be further conducted.
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ACKNOWLEDGEMENTS
The authors would like to acknowledge the National Natural Science Foundation of China (No. 51568007, 51378224, 51208212), the Systematic Project of Guangxi Key Laboratory of Disaster Prevention and Structural Safety and (2016ZDX0), Guangxi Natural Science Foundation(2015GXNSFBA139217) and Zhejiang Provincial Natural Science Foundation of China(LY13E080006) for providing the funding for this project.
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Information & Authors
Information
Published In
Transportation Research Congress 2016: Innovations in Transportation Research Infrastructure
Pages: 400 - 408
Editors: Linbing Wang, Ph.D., Virginia Polytechnic University, Jianming Ling, Ph.D., Tongji University, Pan Liu, Ph.D., Southeast University, Hehua Zhu, Tongji University, Hongren Gong, University of Tennessee Knoxville, and Baoshan Huang, Ph.D., University of Tennessee Knoxville
ISBN (Online): 978-0-7844-8124-0
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Feb 6, 2018
Published in print: Feb 6, 2018
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