Assessment and upgrading of in-service heavy duty pavements to long life

Abstract

The context of long-life pavements (LLP) is winning specific international interest the last years; especially in regards to the upgrading of existing pavements to LLP, which constitutes the main focus of the present research study. For this reason, a detailed assessment of the in situ condition of a heavy-duty highway pavement was performed, based on a comprehensive long-term monitoring approach of its structural performance. The main distress mode of the investigated pavement was cracking in the pavement surface. It is shown that the originally designed pavement could be classified as an upgradeable long lasting one and transferred into a context of a full long-life pavement.

Keywords:

• Long-life pavement
• FWD
• Cores
• Assessment
• Deflection
• Moduli