Elastomers and Composites

  • 제43권2호
  • /
  • Pages.72-81
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  • 2008
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  • 2092-9676(pISSN)
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  • 2288-7725(eISSN)
한국고무학회 (The Rubber Society of Korea)
권호 표지

타이어고무를 이용한 개질에 따른 아스팔트 변형저항성 향상 연구

Improvement of Deformation Resistancy of Asphalt by Modification with Tire Rubber

  • 홍영근 (수원대학교 신소재공학과) ;
  • 고문보 (수원대학교 신소재공학과)
  • Hong, Young-Keun (Department of Polymer Engineering, The University of Suwon) ;
  • Ko, Mun-Bo (Department of Polymer Engineering, The University of Suwon)
  • 발행 : 2008.06.30
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초록

포장도로의 소성변형을 줄여보고자 개질아스팔트가 나타나고 있다. 본 연구에서는 타이어 고무 등을 이용하여 개질된 아스팔트의 물성을 알아 보았다. 마샬안정도와 인장강도가 각각 98% 및 43% 증가하여 타이어 고무의 개질효과를 알 수 있었다. 점도, 침입 및 열 분석에서 아스팔트의 변형저항성이 향상되었음을 알 수 있었다. IR 및 GPC 실험에서 개질제의 구조가 아스팔트의 구조와 유사할 경우 두 화합물 사이에 화학결합이 발생하여 분자들의 크기가 증가함으로써 개질효과가 커짐을 알 수 있었다.

Nowadays, modifying asphalt to improve the resistancy of plastic deformation or rutting on roads has been drawing attention. In this study, asphalts were modified with modifying agents and ground rubber from waste tire (GRT), and the effects of modifier and GRT on the properties of asphalt were analyzed. The Marshall stability of modified asphalt was increased by 98% and the tensile strength increased by 43% compared to straight asphalt. GRT played an important role in enhancing these properties. Viscosity tests, penetration tests and TMA analysis showed the deformation resistancy of modified asphalt. IR and GPC tests indicated that asphalt and modifier have similar chemical structures to each other, and chemical bonding between asphalt and modifier have occurred so that the molecular size lengthened.

키워드

참고문헌

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