ABSTRACT
A test road has been built in 2002 by the Korea Highway Corporation in the central part of the peninsula to establish and develop pavement techniques and performances adapted to the local conditions. The test road is a 2-lane road of 7.7 km composed by 25 concrete pavement sections and 33 asphalt pavement sections. A total of 1,900 sensors of 11 types including strain gauges, soil pressure gauges and thermocouples are embedded in the pavement sections to monitor their longterm behavior under environmental and traffic loadings. This paper intends to give an overview of the monitoring system installed in the test road and addresses recent behavior monitoring results obtained for the anti-frost layer of the test road. These results constitute a first step in the development of reliable anti-frost layers through the investigation on the variation of freezing depth with the thickness and material types of the pavement layers.
