Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Hardened properties of the cement based Basalt powder sludge mortar for surface preparation

시멘트계 바탕 바름재용 현무암 석분슬러지 모르타르의 경화 특성

  • Jang, Myung-Houn (Department of Architectural Engineering, Jeju National University) ;
  • Choi, Heebok (Department of Architectural Engineering, Jeju National University)
  • Received : 2014.04.16
  • Accepted : 2014.10.07
  • Published : 2015.10.20
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Abstract

This study aimed to evaluate of the hardened properties (mortar consistency, setting time, absorption properties, drying shrinkage, and bond strength) of the basalt powder sludge mortar recycling a basalt powder sludge occurred during the manufacture process of basalt stone as a replacing material for the sea-sand used to cement filling compound for surface preparation. The hardened mortar made of the basalt powder sludge showed an enhanced performance or similar with the properties of normal mortar used to cement filling compound for surface preparation. But, the drying shrinkage was increased more than a normal cement mortar in the hardened mortar made of the basalt powder sludge since curing 8 - 9days. And the bond strength is low in the hardened mortar used the basalt powder sludge. On the whole, properties of the hardened mortar used the basalt powder sludge correspond to the required minimum quality criterion in the KS F 4716 'cement filling compound for surface preparation'.

본 연구는 시멘트계 바탕 바름재에 사용되는 바닷모래를 대체하기 위한 재료로서 현무암 가공과정에서 발생되는 현무암 석분슬러지를 재활용하기 위해 현무암 석분슬러지를 사용한 경화모르타르의 특성(연도변화, 응결경화, 흡수계수, 건조수축, 그리고 부착강도 실험)을 평가하였다. 현무암 석분슬러지를 사용한 경화모르타르는 콘크리트 바탕 바름재에 사용되는 기존의 보통모르타르의 특성과 유사하거나 좀 더 향상된 성능을 보였다. 그러나, 현무암 석분슬러지를 사용한 경화모르타르는 보통 모르타르보다 재령 8~9일 이후 건조수축이 증가되었고 부착강도는 감소되었다. 그러나 현무암 석분슬러지를 사용한 경우, KS F 4716 '시멘트계 바탕 바름재'에서 요구하는 최소 품질 규준은 만족하였다.

Keywords

References

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