• Title/Summary/Keyword: 방수공

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Humidity Change Rate Analysis for Various Waterproofing Method in Underground Structures During Winter Season (지하 구조물 동절기 온도조건에서의 방수공법별 습도 변화량 분석)

  • An, Ki-Won;Lee, Yeon-Sil;Lee, Jung-Hoon;Song, Je-Young;Oh, Sang-Keun
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.20 no.1
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    • pp.118-125
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    • 2016

  • This paper proposes the appropriate waterproofing methods for underground structures after applying different types of waterproofing materials on the concrete test specimens and selecting the best results out of humidity testing in winter conditions. Results of the testing showed that the underground structures absolutely require relevant waterproofing application based on the environmental conditions; when applied with interior waterproofing, the results showed that the concrete maintained high level of humidity and reinforcing steel within the concrete layer corroded. However, when applied with exterior waterproofing, it was shown that the waterproofing layer prevent direct contact with water and concrete, thereby protecting the concrete structure and improving overall durability. It follows that during underground structure construction, exterior waterproofing methods are have shown by an effective method for improving the durability as well as providing a comfortable interior environment for users.

  • https://doi.org/10.11112/jksmi.2016.20.1.118 인용 PDF KSCI

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)

  • Um, Tae-Ho;Kim, Young-sam;Lee, Jong-suk;Shin, Hong-chul;Kim, Young-geun
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.20 no.1
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    • pp.112-117
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    • 2016

  • 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.

  • https://doi.org/10.11112/jksmi.2016.20.1.112 인용 PDF KSCI