한국도로학회논문집 (International Journal of Highway Engineering)

  • 제20권1호
  • /
  • Pages.27-33
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  • 2018
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  • 1738-7159(pISSN)
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  • 2287-3678(eISSN)
한국도로학회 (Korean Society of Road Engineers)
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무기질 첨가제를 사용한 상온 재활용 아스팔트 혼합물의 공용성 평가

Performance Evaluation of Cold-Recycling Asphalt Mixtures with an Inorganic Additive

  • 김경수 (세종대학교 공과대학 건설환경공학과) ;
  • 김현겸 (세종대학교 공과대학 건설환경공학과) ;
  • 김원재 (세종대학교 공과대학 건설환경공학과) ;
  • 박창규 (세종대학교 공과대학 건설환경공학과) ;
  • 이현종 (세종대학교 공과대학 건설환경공학과)
  • 투고 : 2017.11.11
  • 심사 : 2018.02.05
  • 발행 : 2018.02.19
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초록

PURPOSES : The purpose of this study is to estimate the optimum content of an inorganic additive for cold-recycled asphalt mixtures and evaluate its performance. METHODS : An indirect tensile test, a tensile-strength ratio test, and an indirect tensile-fatigue test were conducted on cold-recycling asphalt mixtures with various additives. RESULTS : The laboratory performance tests indicated that granulated blast-furnace slag mixed with inorganic and cement activators provided optimum performance. The performance results of the cold-recycled asphalt pavement were similar to the inorganic and cement activators' performance in terms of the indirect tensile strength, tensile strength ratio, and indirect tensile-fatigue test. CONCLUSIONS : Overall, the performance of a cold-recycled asphalt mixture using inorganic additives and emulsion asphalt was comparable to a warm-recycled asphalt mixture. However, more experiments aimed at improving its performance and studying the effect of the inorganic additives must be conducted.

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참고문헌

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  2. Asphalt Recycling & Reclaiming Association (ARRA) (2015). Basic Asphalt Recycling Manual(BARM) 2nd Edition, U.S Department of Transportation, Annapolis, M.D.
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