Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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Properties of Mortar with Polysilicon Sludge Based Active Loess Cement

활성황토 시멘트 기반 폴리실리콘 슬러지를 사용한 모르타르의 특성

  • Kang, Jeon-Uk (Department of Architectural Engineering, Hanbat National Universiy) ;
  • Kim, Dae-Yeon (Department of Architectural Engineering, Hanbat National Universiy) ;
  • Shin, Jin-Hyeon (Department of Architectural Engineering, Hanbat National Universiy) ;
  • Lee, Sang-Soo (Department of Architectural Engineering, Hanbat National Universiy) ;
  • Song, Ha-Young (Department of Architectural Engineering, Hanbat National Universiy)
  • 강전욱 (한밭대학교 건설환경조형대학 건축공학과) ;
  • 김대연 (한밭대학교 건설환경조형대학 건축공학과) ;
  • 신진현 (한밭대학교 건설환경조형대학 건축공학과) ;
  • 이상수 (한밭대학교 건설환경조형대학 건축공학과) ;
  • 송하영 (한밭대학교 건설환경조형대학 건축공학과)
  • Received : 2018.10.05
  • Accepted : 2018.11.28
  • Published : 2018.12.30
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Abstract

This study examines the ways to address environmental issues by utilizing activated loess to reduce the amount of cements that emit a large amount of carbon dioxide during the process of manufacturing, and by reusing the polysilicon sludge produced as a result of manufacturing polysilicon, one of the components for solar power generation panels. The findings of the experiment showed that the optimal replacement ratio of the polysilicon sludge is 20%, 35% for W/B, and 20% for the ratio of the fine aggregate addition. As it is deemed that utilizing the polysilicon sludge for reinforced concrete may lead to rebar corrosion due to the $CI^-$ contained in the sludge, it can be considered to use for unreinforced concrete or bricks.

본 연구에서는 활성황토 혼합 시멘트와 폴리실리콘 슬러지를 활용한 경화체의 기초물성 평가를 위한 실험을 진행하였다. 산업부산물의 재활용과 환경오염에 대한 문제를 해결하고자 폴리실리콘 슬러지의 활용방안을 제시하였으며, 폴리실리콘 슬러지 치환율에 따른 페이스트와 잔골재 첨가율에 따른 모르타르의 특성을 분석하였다. W/B 및 PS 치환율이 증가할수록 강도 및 밀도는 감소하는 경향을 보인다. 잔골재 첨가율에 따른 모르타르의 밀도 및 흡수율은 잔골재의 첨가율이 증가할수록 밀도는 감소하는 경향을 보이며, 흡수율은 증가하는 경향을 보인다. 잔골재 첨가율에 따른 모르타르의 유동성 및 공기량은 잔골재의 첨가율이 증가할수록 유동성은 감소하는 경향을 보이며, 공기량은 증가하는 경향을 보인다. 잔골재 첨가율에 따른 모르타르의 휨강도 및 압축강도는 잔골재의 첨가율이 증가할수록 감소하는 경향을 보인다.

Keywords

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Fig. 2. Density and water absorption of paste by W/B ratio and PS replacement ratio

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Fig. 3. Flowability of paste according to W/B ratio and PS replacement ratio

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Fig. 4. Air content of paste according to W/B ratio and PS replacement ratio

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Fig. 5. Flexural strength of paste according to W/B ratio and PS replacement ratio

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Fig. 6. Compressive strength of paste according to W/B ratio and PS replacement ratio

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Fig. 7. Density and water absorption of mortar according to mixing ratio of fine aggregate

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Fig. 8. Flow ability of mortar according to addition ratio of fine aggregate

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Fig. 9. Air content of mortar according to addition ratio of fine aggregate

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Fig. 10. Flexural strength of mortar according to addition ratio of fine aggregate

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Fig. 11. Compressive strength of mortar according to addition ratio of fine aggregate

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Fig. 1. Powdering process of polysilicon sludge

Table 1. Chemical composition of active loess cement

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Table 2. Chemical composition of polysilicon sludge

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Table 3. Physical properties of fine aggregate

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Table 4. Experimental factors and level of paste according to W/B ratio and PS replacement ratio

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Table 5. Experimental table of paste according to W/B ratio and PS replacement ratio

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Table 6. Mortar experiment factors and levels according to mixing ratio of fine aggregate

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Table 7. Mortar according to mixing ratio of fine aggregate experimental table

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References

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