Research on Fiber Micro-Surfacing Mixture Design and Pavement Performance in Interchange`s Connections

DOI

10.2991/iccet-15.2015.33How to use a DOI?

Keywords

Interchange, Ramp Exit and Entrance, Fiber micro-surfacing mixture, Best Whetstone ratio, Cold bending test.

Abstract

Now a large number of expressway enter the stage of repair and maintenance. But it`s easy to overlook the pavement`s performance, especially the skid resistance of the interchange at ramp exit and entrance during the repair and maintenance Interchange ramp exit and entrance has always been the accident-prone sections. A lot of screeching halts happened in those sections which significantly reduce the pavement skid resistance and Micro-surfacing can significantly improve the performance of pavement. So it`s meaningful that using the micro-surfacing to improve the performance of the pavement in the areas of the ramp exit and entrance, and especially the skid resistance of the pavement. But the existing micro-surfacing technology guide has some technical defects, which impede the application and development of micro-surfacing technology. In this paper, firstly the “graphical method” is used to determine the optimal dosage range of emulsified asphalt. Verified with laboratory tests, recommending the dosage of emulsified asphalt corresponding to the peak of flexural strain measured with low temperature bend test as OAC of micro-surfacing mixture showed superiority technically.

Copyright

© 2015, 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/).

Download article (PDF)

TY  - CONF
AU  - Zhaoyang Wu
AU  - Qi Fu
PY  - 2015/11
DA  - 2015/11
TI  - Research on Fiber Micro-Surfacing Mixture Design and Pavement Performance in Interchange`s Connections
BT  - Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015
PB  - Atlantis Press
SP  - 167
EP  - 174
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccet-15.2015.33
DO  - 10.2991/iccet-15.2015.33
ID  - Wu2015/11
ER  -