Abstract
As jointed plain concrete pavements (JPCP) age in South Korea, the cost of pavement maintenance is increasing annually. To extend the life of jointed concrete pavements through preventive maintenance, this study used 2017 pavement management system data to analyze the effects of traffic volume, alkali–silica reaction (ASR) grade, age, smoothness, and damaged area on the remodeling index (RMI—a measure of expressway pavement condition). In addition, this study evaluates the final RMI as well as the corresponding pavement condition and change in RMI value after conducting preventive maintenance in lieu of resurfacing or overlaying. The results demonstrated that the effect of ASR grade increased as the RMI forecast year increased and that change in surface distress (△SD) increased with age (most intensively when the pavement was 15–20 years of age). Moreover, change in international roughness index (△IRI) increased with age and traffic volume (similarly within 15–20 years of pavement age). Hence, preventive maintenance is a must for sections with high traffic volume and age even if the RMI is low. Finally, performing repairs through preventive maintenance decreases the number of expressway sections requiring resurfacing and overlaying, thus extending the life of the concrete pavement.
Highlights
Concrete pavements were first constructed in South Korea in 1987, starting with Expressway 1, and currently account for more than 60% of the expressway network [1]
Concrete pavements can be classified as jointed concrete pavements and continuous reinforced concrete pavements, which in South Korea accounted for 9491 lane-km (97%) and 245 lane-km (3%), respectively, in 2015 [3,4]
The present study examined the feasibility of extending the life of jointed concrete pavements by identifying changes in the remodeling index (RMI) score when conducting preventive maintenance in lieu of O/L and resurfacing
Summary
Concrete pavements were first constructed in South Korea in 1987, starting with Expressway 1, and currently account for more than 60% of the expressway network [1]. The present study examined the feasibility of extending the life of jointed concrete pavements by identifying changes in the RMI score when conducting preventive maintenance (diamond grinding, cross-section repair, and crack sealing) in lieu of O/L and resurfacing To this end, this study uses the 2017 pavement management system (PMS) data of National Expressway 2 and data from the Korea Meteorological Administration of the Ministry of Land, Infrastructure and Transport [3] to analyze the effects of ASR grade, age, forecast year, and traffic volume on the RMI. The results indicated that timely and appropriate preventive maintenance, primarily based on the RMI, ASR, age, and traffic, decreases the number of expressway sections requiring resurfacing and overlaying, extending the life of the concrete pavement; in addition, the longer maintenance is delayed, the higher the maintenance cost.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
