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Experimental Study on the Characteristics of Asphalt Seal Waterproofing Material for Underground External Walls According to Temperature

온조도건에 따른 외벽방수용 아스팔트 씰계 재료의 흘러내림 특성에 관한 실험

  • 엄태호 (한국건설생활환경시험연구원) ;
  • 김영삼 (한국건설생활환경시험연구원) ;
  • 신홍철 (한국건설생활환경시험연구원) ;
  • 조재우 (한국건설생활환경시험연구원) ;
  • 김영근 (한국건설생활환경시험연구원)
  • Received : 2017.01.06
  • Accepted : 2017.11.13
  • Published : 2018.01.01

Abstract

The present study investigated the characteristics of vertical sagging down of high temperature in chamber and characteristics of vertical sagging down in the outdoor asphalt sheet and asphalt seal under korea ltimate condition using asphalt seal products of solvent based type, solventless type, water dispersion type, and heat melting type, which are currently applied in Korea. Prior to the investigation of outdoor vertical sagging down characteristics, the assessment of sagging down performance of single use of sealing products at $20^{\circ}C$, $40^{\circ}C$, $60^{\circ}C$ was conducted and the result showed that sagging down did not occur at $20^{\circ}C$ but some solventless type, water dispersion type specimens at $40^{\circ}C$ had sagging down up to 10 mm. In addition, some solventless type, water dispersion type specimens had sagging down up to 55 mm at $60^{\circ}C$. For specimens to which asphalt seal and renovated asphalt sheet were layered over the outdoor concrete vertical surface, sheet sagging and sagging down occurred up to 50 mm in water dispersion specimens after three month later since the construction in summer.

콘크리트 구조물이 점차 대형화, 고층화됨에 따라 지하구조물이 증가하고 있으며 지하실, 지하상가, 지하주차장, 지하철 등 그 종류 또한 다양해지고 있다. 이에 따라 지하구조물에 사용된 방수공법으로는 아스팔트계, 가황고무계, 점착형 시트재 등의 시트계 방수재를 이용한 외 방수공법을 주로 사용하였으나, 조인트 부분, 균열 발생 시 방수층의 파단 등 시트 방수공법의 문제점이 나타나 최근 방수층이나 외벽방수의 품질 확보와 구조물 거동에 대한 하자 발생률을 줄이고자 아스팔트 씰과 아스팔트 방수시트를 복합으로 사용하는 복합공법이 널리 사용되어 지고 있다. 그러나 일부 민간 건설 현장에서 아스팔트 씰의 누유현장으로 매스컴에 오르내리면서 아스팔트 씰의 적정품질 확보가 중요시되는 시점이다. 이에 본 연구에서는 국내에서 사용되고 있는 아스팔트 씰계 제품을 대상으로 옥외 수직부 흘러내림 특성을 평가하였다.

Keywords

References

  1. Im, C. J. (1999), A Study for Waterproofness of Underground Structures, Dong-Eui Institute of Technology 論文集, 25, 95-112.
  2. Im, C. J., and Bae, M. O. (2000), Application for a Composite Waterproof Method of Asphalt mastic Film and Sheet on Concrete Structures, Journal of Korea Concrete Institute, 12(2), 793-800.
  3. Jang, H. S., Kang, H. J., Song, J. Y., and Oh, S. G. (2006), An experimental study about the water leakage structure of waterproofing layer performance demobilization method using of stick expansion type complex of flexible material, Journal of the Korea Institute of Building Construction, 5(2), 79-83.
  4. Kim, Y. S., Um, T. H., Kim, Y. S., Shin, H. C., Kim, Y. G., and Choi, S. K. (2016), Basic Experiment to Improve the Quality of Asphalt Seal Waterproofing Material, Journal of Korean Recycled Construction Resources Institute, 297-298.
  5. Korea Conformity Laboratories, Development of Building Technology to Improve the Living Performance Closely Related with Lifestyle to Realize the Housing Welfare., Second Report.
  6. Oh, S. G. (2010), A Study on Guidelines for the Repair of Water-Leakage.
  7. Oh, S. G., Song, J. Y., Kim, J. S., and Lee, N. K. (2006), A Study on the Field Application Analysis for High Adhesive Spray Type of Degenerated and Rubberized Asphalt Membrane Material, Journal of the Korea Institute of Building Construction, 6(4), 85-92. https://doi.org/10.5345/JKIC.2006.6.4.085