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Effect of Plant Roots Penetration and Watertightness of Asphalt Sheet according to the Cracks Width of Press Concrete

콘크리트 균열폭에 따른 녹화 식물 뿌리 침입 및 방수층의 수밀성에 미치는 영향

  • 엄태호 (한국건설생활환경시험연구원) ;
  • 김영삼 (한국건설생활환경시험연구원) ;
  • 이종석 (한국건설생활환경시험연구원) ;
  • 신홍철 (한국건설생활환경시험연구원) ;
  • 김영근 (한국건설생활환경시험연구원)
  • Received : 2015.11.17
  • Accepted : 2015.12.27
  • Published : 2016.01.01

Abstract

For artificial ground greening construction without root-proofing layer, this research reviewed the effect on watertightness of asphalt waterproofing layer by plant roots penetration based on crack width, and crack penetrated roots. Experiment on concrete crack width was performed with three conditions such as 0.15, 0.30, and 0.45 mm, and all three conditions confirmed that all plant roots penetrations were made through crack area in 12 ~ 18 months. In addition, according to evaluation of effects on waterproofing layer by crack penetrated plant roots and in condition of 0.45 mm crack width, it indicated that penetration is made on asphalt waterproofing layer in 12 months due to roots penetration.

최근 인공지반녹화가 주변 생활공간의 쾌적화, 에너지 절약효과, 도시 미관의 환경개선 등의 장점을 갖고 있어 콘크리트 위에 녹화 공간 조성이 증가하고 있다. 이에 따라 건축공사 표준 시방서, 건축물 녹화 설계기준 등에서는 방수층의 수밀안정성 확보를 위해 일정 품질 이상의 방근층 설치를 규정하고 있으나, 실제 우리나라의 많은 현장은 방수층 위에 누름콘크리트 타설 후 인공녹화를 시행하고 있는 실정이다. 이에 본 연구에서는 방근층을 시공하지 않은 현장을 대상으로 지표를 설정하였으며, 누름콘크리트의 균열에 따른 식물의 뿌리가 균열부로 침입 및 관통하여 누름콘크리트 하단부의 아스팔트 방수시트에 미치는 영향을 평가하였다.

Keywords

References

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