Title: Design and Instrumentation Plan for a Long Life Pavement in Ontario
Abstract: Transportation agencies are under increased pressure to extend pavement service life and reduce delays to the travelling public. These demands have resulted in the development of perpetual pavements, also referred to as long life pavements. A perpetual pavement is a flexible pavement designed from the bottom up to resist structural failure, minimize cracking and rutting, and last for 50 years or more with only periodic renewal. In 2006, the Ministry of Transportation Ontario (MTO) begins construction of its first perpetual pavements, with extension of Hwy 406, near Thorold and reconstruction of Highway 402, near Sarnia, Ontario. The Hwy 402 project will be constructed in three sections: a 4 km trial section of perpetual pavement with rich bottom mix as the lower binder; a 4 km trial section of perpetual pavement with Superpave 25 mm as the lower binder; and a control section of conventional flexible pavement. The perpetual pavement trials and control section will be instrumented, to better understand how the different pavement structures react and perform under various traffic loadings and environmental conditions. This paper describes the pavement design for each trial section on Hwy 402, the requirements for the rich bottom mix, and the instrumentation plan. A long-term monitoring program will also involve annual Falling Weight Deflectometer testing, roughness and rutting measurement, and manual distress surveys.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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