일반국도에 적용한 마이크로서페이싱공법과 폴리머슬러리실공법에 대한 현장 공용성 평가 = Field Performance Evaluation of Micro-surfacing Method and Polymer Slurry Seal Method Used in National Highway

다국어 초록 (Multilingual Abstract)

PURPOSES: Recently, crack, rutting, and stripping problems from the surface of asphalt pavements in National highway are observed and they affect the drivers to feel uncomfortable on the road. Surface treatments are recommended to use in distressed pavements due to costeffective, and improvement of surface performance. The purpose of this study is to evaluate the performance of micro-surfacing and polymer slurry seal treatments for distressed asphalt pavements.
METHODS: Surface conditions and friction resistance are evaluated for asphalt pavements treated with micro-surfacing and polymer slurry seal mixes in National highway 30 line and 34 line. Visual observation is conducted and surface performance is measured by PES (Performance Evaluation Surveyor) in terms of crack ratio, rutting and IRI(International Roughness Index). BPN(British Pendulum Number) is measured by BPT(British Pendulum Tester) to evaluate the friction resistance in the field.
RESULTS: The surface evaluation results are presented for asphalt pavement treated with micro-surfacing and polymer slurry seal treatments in National highway 30 line and 34 line. Based on the visual observation, micro-surfacing and polymer slurry seal treatments show better improvements in terms of cracks and stripping. Based on the surface conditions measured by PES vehicle, the surface performance of microsurfacing treatments improves from 53.3% to 54.2% and the surface performance of polymer slurry seal treatments improves from 21.6% to 59.7%. However, the friction resistance of both micro-surfacing and polymer slurry seal treatments decreases from 2.5% to 6.7%. Further, it should be verified to produce the surface exposed with aggregates during the construction process of both treatment methods in the field.
CONCLUSIONS : Based on the performance evaluation results in the filed, the surface performance of asphalt pavement treated with micro-surfacing and polymer slurry seal treatments improves from 21.6% to 59.7%. While, the friction resistance of asphalt pavement treated with micro-surfacing and polymer slurry seal treatments does not improve. It can be concluded that current micro-surfacing and polymer slurry seal treatments would improve surface performance but would not improve the friction resistance.

참고문헌 (Reference)

1 "Pavement Maintenance Manual"

2 "ISSA A 143, Recommended Performance Guidelines For Micro-Surfacing"

3 "ISSA A 105, Recommended Performance Guidelines For Emulsified Asphalt Slurry Seal"

4 Ministry of Land, Transport and Maritime Affairs, "Final-Report of the National Highway Pavement Management System 2013" 2013

5 Ministry of Land, Transport and Maritime Affairs, "Annual Research Report of the National Highway Pavement Management System 2013" 2013

6 "ASTM E 303-93, Standard Test Method for Measuring Surface Frictional Properties Using the British Pendulum Tester"