A Case Study of Asphalt Pavement Overlay for Beinjing West Chang’an Avenue Using Modified Bitumen of High Viscosity and Elasticity
- DOI
- 10.2991/icsmim-15.2016.52How to use a DOI?
- Keywords
- West Chang’an Avenue, reflection crack, rutting, interlayer bonding, modified asphalt with high viscosity and high elasticity
- Abstract
Beijing West Chang’an Avenue was re-overlaid in 2014 to improve its service condition due to serious reflection cracks . The existed structure of pavement is a combination of 8~10 cm bituminous surface based on cement concrete layer. In this case study, the cracked bituminous layers were removed and a stress absorbing layer was applied to improve the cohesion between road base and surface layer. A high temperature and traffic loading standard (70 , 1.0MPa) was adopted in according to the real project conditions. A series of performance laboratory test was conducted to optimize materials design and evaluate the characteristic of the materials. The laboratory test results shown that the modified bitumen has a excellent performance with higher resistance of fatigue and deformation. This project has been open to traffic for nearly one year and the stress absorbing layer were approved to effective reduce the reflection cracks and moisture damage of pavement structure in the light of the satisfactory pavement service indexes.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Jianmin Li AU - Linlin Chai PY - 2016/01 DA - 2016/01 TI - A Case Study of Asphalt Pavement Overlay for Beinjing West Chang’an Avenue Using Modified Bitumen of High Viscosity and Elasticity BT - Proceedings of the 2015 4th International Conference on Sensors, Measurement and Intelligent Materials PB - Atlantis Press SP - 272 EP - 278 SN - 2352-538X UR - https://doi.org/10.2991/icsmim-15.2016.52 DO - 10.2991/icsmim-15.2016.52 ID - Li2016/01 ER -