도로노면 상태조사 및 코어 분석을 통한 아스팔트 포장 성능과 파손원인 평가

서지정보

ㆍ발행기관 : 한국도로학회 ㆍ수록지정보 : 한국도로학회논문집 / 25권 / 6호
ㆍ저자명 : 백철민, 한수현, 안덕순, 옥창권

목차

1. 서론
2. 아스팔트 도로포장 노면 상태 조사
2.1. 포장 표면에 발생한 균열
2.2. 소성변형
2.3. 종단평탄성(IRI)
2.4. 애조로 포장상태 분석 결과
3. 현장 코어 채취 및 물성 평가
3.1. 현장 코어 채취
3.2 채취 코어 물성 평가
4. 아스팔트 도로포장 파손 현장 조사 및 분석
4.1. 포장 내부 상태 육안조사
4.2. 현장 채취 혼합물 분석
4.3. 포장 파손원인 분석
5. 결론
감사의 글

영어 초록

PURPOSES : The purpose of this study is to provide basic data to improve the service life of asphalt pavement using basalt aggregate in Jeju Island by evaluating the performance of asphalt pavement through analysis of material and structural aspects. METHODS : To evaluate the performance of Jeju Island's asphalt pavement, cracks, permanent deformation, and longitudinal roughness were analyzed for the Aejo-ro road, which has high traffic and frequent premature damage. Cores were collected from Aejo-ro sections in good condition and damaged condition, and the physical properties of each layer were compared and analyzed. In addition, plate cores were collected from two sections with severe damage and the cause of pavement damage was analyzed in detail. RESULTS : About 45% of the collected cores suffered damage such as layer separation and damage to the lower layer. The asphalt content of surface layer in the damaged section was found to be 1.1% lower on average than that in the good condition section, and the mix gradations generally satisfied the standards. The density difference between the cores of each layer was found to be quite large, and the air voids was found to be at a high level. CONCLUSIONS : Test results on the cores showed that, considering the high absorption ratio of basalt aggregate, the asphalt content was generally low, and the high air voids of the pavement was believed to have had a significant impact on damage. High air voids in asphalt pavement can be caused by poor mixture itself, poor construction management, or a combination of the two factors. Additionally, the separation of each layer is believed to be the cause of premature failure of asphalt pavement.

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