Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Performance Evaluation of Porous Hwang-toh Concrete Using Blast Furnace Slag Cement

고로슬래그시멘트를 사용한 다공성 황토콘크리트의 성능 평가

  • 김황희 ((주) 자연과환경 생태환경공학연구소) ;
  • 강수만 ((주) 자연과환경 생태환경공학연구소) ;
  • 박종식 (한화건설 건설기술연구소) ;
  • 박상우 (서남대학교 토목환경공학과) ;
  • 전지홍 (안동대학교 환경공학과) ;
  • 이진형 (공주대학교 대학원) ;
  • 차상선 (공주대학교 대학원) ;
  • 박찬기 (공주대학교 지역건설공학)
  • Received : 2010.01.06
  • Accepted : 2010.04.19
  • Published : 2010.05.31
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Abstract

This study aims to evaluate a porous concrete using hwang-toh, blast furnace slag and blast furnace slag (BFS) cement instead of type I cement. The tests that were carried out to analysis the properties of porous hwang-toh BFS cement concrete included compressive strength, continuous void ratio, absorption rate, and pH value, repeated freezing and thawing test were conducted. Test results indicated that the performance in porous hwang-toh concrete are effective on the kaoline based binder materials. The pH value were shown in about 9.5 ~ 8.5. The compressive strength was increased and void ratio was decreased with increasing the kaoline based binder materials, respectively. The void ratio and compressive strength were in the range of about 21 ~ 30 %, 8 ~ 13 MPa, respectively. The increased in void ratio of more than 25 % is showed to reduce the resistance of repeated freezing and thawing. Also, the resistance of repeated freezing of thawing and the compressive strength of porous hwang-toh BFS cement concrete are independent with hwang-toh content and BFS cement amount. But, the void ratio was decreased with increasing the high volume hwang-toh contents (more than 15 %).

Keywords

References

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