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pp.39-46
PURPOSES : Recently, interest in maintaining aged concrete pavements has been increasing. An asphalt overlay is generally used for pavement maintenance, and a tack coat is used to secure interlayer adhesion. Particularly, aged concrete pavements are required for higher adhesion performance of tack coats for attaching interlayers to materials with different properties. Insufficient interlayer adhesion could cause pavement damage, such as slippage, rutting, shoving, corrugation, and pothole. In this study, we examined the performance of interface adhesion by applying a tack coat material developed for maintaining aged concrete pavement. METHODS : In this study, we examined the effect of adhesion performance at the pavement interface, using a tack coat material developed for the maintenance of aged concrete pavement. RESULTS : The developed tack coat not only accomplished the performance objectives but also improved the results by more than 12 to 43%, compared to commonly used materials. CONCLUSIONS : The use of developed tack coat is expected to improve the interlayer adhesion and reduce the delay of the maintenance process in aged concrete pavement.
1. 서론
2. 동시포설용 택코트
3. 포장계면의 부착성능 영향인자
3.1. 살포량
3.2. 양생시간
3.3. 경계면 상태
4. 층간 부착성능 평가방법
4.1. 복합포장 시편 제작
4.2. 층간 부착성능 실험방법
5. 층간 부착성능 시험결과 및 분석
5.1. 직접전단 실험결과
5.2. 직접인장 실험결과
6. 결론
REFERENCES
