• Title/Summary/Keyword: 혼합제

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Evaluation of the Deicing Performance and Concrete Structure Effect with Various Deicing Chemicals (제설제 종류에 따른 융빙성능 및 콘크리트에 미치는 영향 평가에 관한 연구)

  • Lee, Byung-Duck;Yun, Byung-Sung;Lee, Joo-Kwang;Chung, Young-Hwan
    • International Journal of Highway Engineering
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    • v.7 no.4 s.26
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    • pp.113-123
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    • 2005

  • In this study, calcium chloride$(CaCl_2)$, sodium chloride (NaCl), organic acids-containing deicer(NS 40, NS 100), mixed deicier$(NaCl\;70%+CaCl_2\;30%,\;NS\;40\;70%+CaCl_2\;30%,\;NaCl\;70%+NS\;40\;30%,\;NS\;40\;70%+NaCl\;30%)$ is investigated based on the laboratory test for deicing performance, freez-thaw resistance of concrete, and corrosion rate of metal. Test items for deicing performance were ice melting and ice penetration, freezing point depressions and eutectic point, pH, thermal properties for selected deicing chemicals as well as their compatibility with concrete and metal were experimentally investigated. As a test results, in case of the use chloride-containing deicier in area that concrete structures has subjected to freez-thaw reaction in winter season, it showed that mixed deicing chemicals with optimum ratio has desirable method than use one deicing chemicals when is consider to deicing performance and effects, corrosion of steel materials, and freez-thaw resistance of concrete. When use various deicing chemicals mixed, NS40(70%)+calcium chloride(30%) showed the best effective method.

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