고품위화 정제공정 부산물(SDAR) 활용을 위한 첨가제 개발 및 이를 이용한 아스팔트 혼합물의 실내 공용성능 평가
* 본 문서는 배포용으로 복사 및 편집이 불가합니다.
서지정보
ㆍ발행기관 : 한국도로학회
ㆍ수록지정보 : 한국도로학회논문집 / 18권 / 6호
ㆍ저자명 : 백철민, 양성린, 황성도
ㆍ저자명 : 백철민, 양성린, 황성도
영어 초록
OBJECTIVES: The objective of this research is to develop additives for the modification of Solvent DeAsphalting Residue (SDAR) to be used as pavement materials, and evaluate the performance of asphalt mixture manufactured using the SDAR modified by developed additives. METHODS: The SDAR generally consists of more asphaltenes and less oil components compared to the conventional asphalt binder, and hence, the chemical/physical properties of SDAR are different from that of conventional asphalt binder. In this research, the additives are developed using the low molecular oil-based plasticizer to improve the properties of SDAR. First, the chemical property of two SDARs is analyzed using SARA (saturate, aromatic, resin, and asphaltene) method. The physical/rheological properties of SDARs and SDARs containing additives are also evaluated based on PG-grade method and dynamic shear-modulus master curve. Second, various laboratory tests are conducted for the asphalt mixture manufactured using the SDAR modified with additives. The laboratory tests conducted in this study include the mix design, compactibility analysis, indirect tensile test for moisture susceptibility, dynamic modulus test for rheological property, wheeltracking test for rutting performance, and direct tension fatigue test for cracking performance. RESULTS : The PG-grade of SDARs is higher than PG 76 in high temperature grades and immeasurable in low temperature grades. The dynamic shear modulus of SDARs is much higher than that of conventional asphalt, but the modified SDARs with additives show similar modulus compared to that of conventional asphalt. The moisture susceptibility of asphalt mixture with modified SDARs is good if, the antistripping agent is included. The performance (dynamic modulus, rutting resistance, and fatigue resistance) of asphalt mixture with modified SDARs is comparable to that of conventional asphalt mixture when appropriate amount of additives is added. CONCLUSIONS: The saturate component of SDARs is much less than that of conventional asphalt, and hence, it is too hard and brittle to be used as pavement materials. However, the modified SDARs with developed additives show comparable or better rheological/physical properties compared to that of conventional asphalt depending on the type of SDAR and the amount of additives used.참고 자료
없음태그
"한국도로학회논문집"의 다른 논문
- 도로변 수직구조물 충돌사고의 심각도 영향요인에 관한 연구8페이지
- 토지이용 유형별 회전교차로 교통사고모형8페이지
- 주행속도를 고려한 고속도로 나들목 연결로의 편경사 상향조정에 관한 연구11페이지
- 축광노면표시의 실내 및 현장 휘도 성능분석과 디지털이미지를 이용한 휘도분석 사전연구8페이지
- 유한요소기법을 이용한 동공해석과 공용수명 예측기법 연구6페이지
- 아스팔트 포장층 분리억제용 역청재료의 부착성능 및 최적함량 평가에 대한 연구7페이지
- 자치구 포장상태평가등급 기준 개선 및 포장상태 예측지수 개발8페이지
- 수분민감성 관련 소석회 및 박리방지제 첨가 투수성 가열 아스팔트 혼합물의 최적 함량 평가8페이지
- 순환골재를 활용한 포장용 시멘트콘크리트의 최적배합 도출을 위한 기초 연구9페이지
- 가변 제한속도 표지판 크기기준 정립을 위한 안개재현 현장실험10페이지