Field performance evaluation of stone interlayer pavement in Louisiana

Abstract

In this study, field performance of a stone interlayer pavement test section and cement-stabilised base test control section on LA-97 in Acadia Parish, Louisiana, was monitored during 20 years of service. In addition, the performance of other nine stone interlayer pavement sections in Louisiana constructed from 1999 to 2008 was monitored and evaluated. Field evaluations in this study included distress surveys on all 11 pavement sections, and non-destructive evaluation of pavement structure by the falling weight deflectometer and the dynamic deflection determination system test on nine of these sections. The field evaluation results indicated that the stone interlayer test section on LA-97 had a superior pavement performance to control section over the 20 years of service, and other nine stone interlayer pavement sections were in good pavement condition after 2.5–12 years of service.

Keywords::

• pavement field performance
• stone interlayer pavement
• PMS
• non-destructive evaluation
• FWD
• Dynaflect

Acknowledgements

The authors thank Mr Mitchell Terrell for conducting FWD and Dynaflect tests and data analysis. All those who provided valuable help in this study are also appreciated.

Disclaimer

The information presented in this paper only reflects the views of the authors. No official endorsement should be associated with the information provided.

Notes

^1. Email: [email protected]

^2. Email: [email protected]

Additional information

Funding

This study was supported by the Louisiana Transportation Research Center and the Louisiana Department of Transportation and Development.