1.서론...1 1.1 연구배경 및 목적...1 1.2 연구방법...3 2.국내 폐아스팔트 콘크리트 발생현황...4 2.1 국내 폐아스팔트 콘크리트 발생현황 및 처리실태...4 2.1.1 국내도로현황...4 2.1.2 국내 폐아스팔트 콘크리트 재활용현황...5 2.2 서울특별시 폐아스팔트 콘크리트 발생현황 및 처리실태...7 2.2.1 서울특별시 도로현황...7 2.2.2 도로유지보수현황...8 2.2.3 도로굴착 복구공사 현황...8 2.2.4 서울특별시 폐아스팔트 콘크리트 발생현황...9 2.2.5 서울특별시 폐아스팔트 콘크리트 처리실태...9 3.아스팔트의 일반적 특성 및 노화원인 분석...10 3.1 아스팔트의 일반특성...10 3.1.1 아스팔트의 성분 분류 방법...10 3.1.2 아스팔트의 화학적 성분...11 3.1.3 콜로이드 시스템으로서의 아스팔트...14 3.1.4 아스팔트 성분분류...15 3.1.5 아스팔트의 물리적 성질...18 3.1.6 아스팔트 평가시험...19 3.1.7 아스팔트 등급 체계...23 3.2 아스팔트의 노화에 따른 특성...29 3.2.1 일반적 특성...29 3.2.2 노화의 원인...29 3.2.3 화학적 특성...30 3.2.4 물리적 특성...32 4.외국의 폐아스팔트 콘크리트 재활용 현황...36 4.1 미국...36 4.1.1 미국의 재생공법의 변천...36 4.1.2 미국의 재활용 현황...37 4.1.3 미국의 재생플랜트...39 4.2 일본...41 4.2.1 일본의 재생공법의 변천...41 4.2.2 일본의 재활용 현황...41 4.2.3 일본의 재생플랜트 방식...43 4.3 캐나다...46 4.4 유럽...47 4.5 각 나라별 재활용률 비교...49 5.국내의 폐아스팔트 콘크리트 재활용 현황...50 5.1 재생 플랜트의 신설방안...50 5.1.1 재생플랜트의 특수성...50 5.2 기존업체의 폐아스팔트 콘크리트 재생현황...52 5.2.1 부산 건설안전시험사업소...52 5.2.2 세아건설(주)...56 5.2.3 기존업체의 경제성 평가...62 6.폐아스팔트 콘크리트의 재생공법...64 6.1 재생 공법의 분류...64 6.2 가열재생 공법...64 6.2.1 플랜트 재생공법...64 6.2.2 현장표층 재생공법...66 6.2.3 이동식 재생장치에 의한 재생공법...69 6.3 상온재생공법...71 6.4 폼드아스팔트를 이용한 재생공법...72 6.4.1 공법의 개요 및 혼합물의 특징...72 6.4.2 거품 바인더의 준비...72 6.4.3 골재의 준비...73 6.4.4 예비 혼합물의 아스팔트비 결정...74 6.4.5 함수비의 결정...75 6.4.6 혼합 및 다짐...75 6.4.7 양생 및 최적함수비의 결정...75 6.4.8 배합설계 기준...76 7.재생아스팔트 혼합물의 배합설계 및 시험절차...77 7.1 폐아스팔트 콘크리트 수집 및 사용재료...77 7.1.1 폐아스팔트 콘크리트 수집...77 7.1.2 사용재료...79 7.2 시험절차...82 7.3 시험방법...83 7.3.1 회수아스팔트 혼합물의 추출시험...82 7.3.2 침입도...84 7.3.3 배합설계...85 7.3.4 회복탄성계수...86 7.3.5 크리프시험...88 7.3.6 간접인장강도시험...89 7.3.7 훨트랙킹(Wheel Tracking)시험...91 8.폐아스팔트 콘크리트의 시험결과 및 분석...93 8.1 폐아스팔트 콘크리트의 아스팔트함량...93 8.1.1 폐아스팔트 콘크리트의 아스팔트함량...93 8.1.2 구재아스팔트 성상...94 8.1.3 입도시험...97 8.1.4 비중시험...99 8.1.5 폐아스팔트 콘크리트의 마샬안정도시험(Remolding)...100 8.2 폐아스팔트 콘크리트의 성상회복시험...100 8.2.1 재생아스팔트 혼합물의 입도 결정...100 8.2.2 재생첨가제첨가...107 8.2.3 설계침입도조정...108 8.3 역학시험결과분석...110 8.3.1 마샬안정도시험결과...111 8.3.2 회복탄성계수 시험결과...120 8.3.3 크리프시험결과...122 8.3.4 간접인장강도 시험결과...123 8.3.5 훨트랙킹시험...124 8.4 재생아스팔트 혼합물의 시험성과결과...126 9.향후 연구과제...127 10.결론...128 11.건의사항...131