Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Evaluation of cement mortars blended with copper alloy slag

구리 합금 슬래그를 혼합한 시멘트 모르타르의 특성

  • Lee, Jung-Il (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Hong, Chang Woo (Department of Civil Engineering, Korea National University of Transportation) ;
  • Ryu, Jeong Ho (Department of Materials Science and Engineering, Korea National University of Transportation)
  • 이정일 (한국교통대학교 신소재공학과) ;
  • 홍창우 (한국교통대학교 토목공학과) ;
  • 류정호 (한국교통대학교 신소재공학과)
  • Received : 2015.01.27
  • Accepted : 2015.02.06
  • Published : 2015.02.28
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Abstract

The cement mixtures such as flyash, iron-slag and silica fume have been actively studied in order to increase the quality of concrete. In this study, the grinded copper-slag with different proportion was added to portland cement. The physical properties of the cement mortars, (i.e.) flowability, absorption, compressive strength and flexural strength, were investigated for the potential application to the cement. Also, the influence of the acid on the chemical resistance of the cement mortars with copper-slag was evaluated by monitoring the weight variation of the cement mortars under 5 % sulfuric acid for 28 days.

최근 콘크리트의 품질을 향상시키기 위하여 플라이애쉬, 고로슬래그, 실리카퓸과 같은 각종 시멘트 혼화재에 대한 많은 연구가 진행되고 있다. 이에 본 연구에서는 동합금 제련시 발생되는 슬래그의 시멘트 대체재로서의 활용성을 확인하기 위해 동합금 슬래그를 미분쇄하여 상용 포틀란트 시멘트에 첨가하고, 첨가량 변화에 따른 시멘트 모르타르의 유동성, 흡수율, 단위용적중량, 압축강도 및 휨강도 변화를 조사하였다. 또한 5 % 황산용액에서의 동슬래그 함유 시멘트 모르타르의 무게변화를 28일 동안 측정하여 화학적 저항성을 평가하였다.

Keywords

References

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Cited by

  1. Characteristics of fresh mortar with particle size and replacement ratio of copper slag vol.26, pp.1, 2016, https://doi.org/10.6111/JKCGCT.2016.26.1.041
  2. Strength and sulfuric acid resistance properties of cement mortar containing copper slag vol.26, pp.3, 2016, https://doi.org/10.6111/JKCGCT.2016.26.3.101