• Title/Summary/Keyword: 콘크리트용

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순환골재 품질기준

  • 한국레미콘공업협회
    • 레미콘
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    • s.85
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    • pp.58-69
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    • 2005
  • 본자료는 건설교통부에서 마련한 순환골재 품질기준 중 콘크리트 분야만을 발췌하여 회원사 업무에 도움주고자 편집게재 합니다. -편집자주

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A Study on Physical Properties of FINEX Slag to Utilize Fine Aggregate for Concrete (콘크리트용 잔골재로 활용하기 위한 파이넥스 슬래그의 물리적 특성에 관한 연구)

  • Choi, Yun-Wang;Oh, Sung-Rok;Choi, Byung-Keol;Lee, Hoon-Ha;Choi, Wook
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.7 no.4
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    • pp.79-87
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    • 2012
  • Recently, Development of substitution aggregate is urgently needed because aggregate shortage is continuing due to the exhaustion of natural aggregate and strict restrictions of environment in construction industry. Therefore, This paper was examined the fundamental properties for application of FINEX slag by finex process as fine aggregate for concrete. Through this study, we propose the practical method of FINEX slag as fine aggregate for concrete.

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A Comparative Study on the Quality of Recycled Aggregate for Concrete by Crushing Method (파쇄 방법에 따른 콘크리트용 순환골재의 품질 비교 연구)

  • Choi, Won-Young;Lee, Sae-Hyun;Kim, Seoung-Hwan
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.5 no.2
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    • pp.121-129
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    • 2017
  • In this study, the quality of recycled aggregate for concrete was investigated as the number of recycled aggregate crushing cycles, grinder and crusher, peeling and crushing. First, the quality of density, absorption ratio and solid content was improved as the separation distance decreased and the number of crushing increased, depending on the number of crushing of recycled aggregate and the distance between mantle and cone cave. The quality of density, absorption ratio and solid content was improved as the wire mesh used in striking plate and the number of hammers increased, depending on the type of striking plate and the number of hammers.

A Study on the Penetration Depth Measurement Methods of Inorganic Waterproofing Agent for Concrete (콘크리트용 무기계 방수제의 침투깊이 측정방법에 관한 연구)

  • Choi, Yun-Wang;Oh, Sung-Rok;Park, Man-Seok;Kim, Kyung-Hwan
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.18 no.3
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    • pp.116-124
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    • 2014
  • Penetration depth of inorganic waterproofing agent is difficult to assess quantitatively because inorganic waterproofing agent for concrete is not an internal waterproof membrane. However, evaluation of penetration depth of inorganic waterproofing agent is one of the most important evaluation index to secure efficiency in a consistent penetration. Therefore, this paper was proposed penetration depth measurement method of inorganic waterproofing agent for concrete and the penetration depth of the conventional inorganic waterproofing agent have been evaluated through the proposed penetration depth measurement method. As a result of test, the measured penetration depth throught the proposed penetration depth measurement method of inorganic waterproofing agent showed that more than 90% reliability.