줄눈형식에 따른 공항 콘크리트 포장 하중전달율 비교 = Comparison with Load Transfer Efficiency for Joint Types in Airport Concrete Pavements

다국어 초록 (Multilingual Abstract)

PURPOSES: This study is to compare load transfer efficiency of key joint and dowel joint for airport concrete pavement.
METHODS: As AC150/5320-6D of FAA’s [Advisory Circular] was changed into AC150/5320-6E, Key joint type of rigid pavement wereexcluded from Construction Joints.. LTE(Load Transfer Efficiency) of dowel joint and key joint were compared by times and seasons throughpavement temperature measurement, ocular investigation and HWD measurement.
RESULTS: For the joint performance grade of No. 2(The second) runway of airport, 12% of poor rate was observed in key joint and 2% ofpoor rate in dowel joint. Poor rate of key joint was increased to 17%, if only No. 3~No. 6 slabs, which are mostly loaded from the airplanes,were applied for the study. In apron area, LTE poor rate of key joint was high in winter, and LTE poor rate of dowel joint was at least above‘Fair’ grade. In summer, ‘Fair’ for key joint, ‘Acceptable’ for dowel joint appeared.
CONCLUSIONS : As results, dowel joint was superior than key joint for LTE. Deviations of seasons and times were smaller in doweljoint’s result. And LTE in winter was lower than LTE in summer.

참고문헌 (Reference)

1 Federal Aviation Administration, "Use of Nondestructive Testing in the Evaluation of Airport Pavements" 2011

2 Christopher R. Byrum, "Joint Load Transfer in Concrete Airfield Pavements : Summary Report" 2011

3 Christopher R. Byrum, "Joint Load Transfer in Concrete Airfield Pavements : Appendix B : Literature Review Summery" 2011

4 Christopher R. Byrum, "Joint Load Transfer in Concrete Airfield Pavements" 2011

5 Federal Aviation Administration, "Airport Pavement Design and Evaluation" 1995

6 Federal Aviation Administration, "Airport Pavement Design and Evaluation" 2009