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An Experimental Study on the Development of White Cement by using High Whiteness Index in Slag

백색도가 높은 슬래그를 이용한 혼합 백색포틀랜드시멘트 개발에 관한 실험적 연구

  • 김규용 (충남대학교 건축공학과) ;
  • 조도영 (한일시멘트 테크니컬센터) ;
  • 신경수 (충남대학교 대학원 건축공학과)
  • Received : 2012.03.10
  • Published : 2012.08.25

Abstract

There are many studies about reducing $CO_2$ emission by using large amount of by-product pozzolans such as Ground Granulated Blast Furnace Slag (GGBHS). In Korea, however, the economic feasibility of using GGBFS is not satisfied due to the cheap price of Portland cement. Since some GGBFS produced in Korea contains white color depending on producing district, blended cement using such GGBFS can lead to production of white blended cement. In this research, the possibility of blended cement by using white GGBFS to replace the existing white cement is investigated. According to the results, certain mix proportions with lower GGBFS content (52-55%) were found to meet the KS standard. However, some mix proportions above 60% GGBFS was slightly below the required KS standard. In case of pulverization process, the premixed blended white cement appeared that it couldn't meet the target compressive strength and whiteness index. Further research is necessary to develop proper procedure and guideline for production of blended white cement.

Keywords

References

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