일반국도 현장조사 모니터링을 통한 장수명 아스팔트 덧씌우기포장의 공용성 분석 = Performance Evaluation of Long-Life Asphalt Concrete Overlays Based on Field Survey Monitoring in National Highways

다국어 초록 (Multilingual Abstract)

PURPOSES: Performance evaluation of four types of asphalt concrete overlays for deteriorated national highways.
METHODS : Pavement distress surveys for crack rate and rut depth have been conducted annually using an automated pavement survey vehicle since 2007. Linear and non-linear performance prediction models of the asphalt concrete overlays were developed for 43 sections. The service life of the asphalt overlays was defined as the number of years after which a crack rate of 30% or rut depth of 15mm is observed.
RESULTS: The service life of the asphalt overlays was estimated as 17.4 years on an average. In 90.7% of the sections, the service life of the overlays was 15 years or more which is 1.5 times the life of conventional asphalt concrete overlays used in national highways. The performance of the overlays was dependent on the type of asphalt mixture, traffic volume levels, and environmental conditions.
CONCLUSIONS : The usage of stone mastic asphalt (SMA) and polymer-modified asphalt (PMA) for the overlays provided good resistance to cracking and rutting development. It is recommended that appropriate asphalt concrete overlays must be applied depending on the type of existing pavement distress.

참고문헌 (Reference)

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2 Yoo, P. J., "Thermo-plastic Fiber's Reinforcing Effect on Hot-Mix Asphalt Concrete Mixture" 59 : 136-143, 2014

3 Lee, K.H., "The development of the composite pavement structure for heavy duty traffic and thin overlay system using polymer concrete, Final Report" Ministry of Land, Transport and Maritime Affairs 2012

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5 MOLIT, "National highway pavement management system, Final report" Ministry of Land, Infrastructure and Transport 2013

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7 Yoo, I.K., "Field Performance and Economic Analysis of SBS Modified Asphalt Pavement" 3 (3): 93-99, 2001

8 Lee, S.H, "Field Performance and Cost Effectiveness of Polymer Modified Asphalt" 4 : 281-284, 2000

9 Cho, K. T., "Evaluation of Performance and Construction the New National Test Road Sites of Modified Asphalt" 4 (4): 43-49, 2002

10 Park, H.M., "Concept and Literature Review on Long-Life Asphalt Pavements in Foreign Countries"