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Engineering Characteristics of Recycled Cold Asphalt Mixtures Using Waste Glass and Red Mud

폐유리 및 레드머드를 활용한 순환 상온 아스팔트 혼합물의 공학적 특성

  • Received : 2021.02.03
  • Accepted : 2021.03.12
  • Published : 2021.03.30

Abstract

In this study, the engineering charateristics of recycled cold asphalt mixtures using waste glass and red mud were examined as part of the development of low carbon road pavement materials using large amounts of waste. It also examined the satisfaction of the performance criteria specified in the standard. As a result of the study, it was found that RCA using waste glass were not met standard of GR since strain resistance reduced. Therefore, it has been shown that improvements in the composition of the mixture are needed. It has also been shown to significantly improve the performance of the mixture when adding red mud. In addition, it was found that the quality standards for stability, flow value, indirect tensile strength and tensile strength ratio as specified by GR are satisfied.

본 연구에서는 폐기물을 대량 활용한 저탄소 도로포장재 개발의 일환으로 폐유리 및 레드머드를 활용한 상온 아스팔트 혼합물의 물성 및 역학적 특성을 검토하고, 해당 표준에서 규정하고 있는 성능기준에 대한 충족여부를 검토하였다. 연구결과 폐유리 혼입 시 혼합물의 변형저항성을 저하시켜 GR의 품질기준치를 충족시키지 못하는 것으로 나타나 이에 대한 배합상 개선이 필요한 것으로 나타났다. 또한 레드머드 첨가로 폐유리 활용 혼합물의 성능을 크게 개선시키는 것으로 나타났으며, 폐유리 혼입에 따른 변형저항성 저하를 개선시켜 현재 GR에서 규정하고 있는 안정도, 흐름값, 간접인장강도 및 인장강도비 등에 대한 품질기준치를 모두 충족시키는 것으로 나타났다. 따라서 폐유리 및 레드머드의 순환 상온 아스팔트 혼합물용 적용 소재로의 가능성을 확인할 수 있었다.

Keywords

References

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