Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Evaluating the Durability of Concrete Combined with Ground Granulated Blast Furnace Slag using Electrolysis Alkaline Aqueous as Mixing Water

전기분해 알칼리수를 배합수로 사용한 고로슬래그 미분말 혼입 콘크리트의 내구성

  • Jeong, Su-Mi (Department of Architectural, Mokwon University) ;
  • Kim, Ju-Sung (Department of Architectural, Mokwon University) ;
  • Park, Sun-Gyu (Department of Architectural Engineering, Mokwon University)
  • Received : 2023.06.14
  • Accepted : 2023.07.07
  • Published : 2023.08.20
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Abstract

This research aimed to enhance the initial strength of concrete that is mixed with ground granulated blast furnace slag, as well as to fortify its resistance to carbonation and chloride ion permeation. To achieve this, alkaline aqueous, produced through the electrolysis of potassium carbonate, was employed as the mixing water in the preparation of concrete. To substantiate the increment in initial strength, compressive strength measurements of the concrete were executed. Additionally, an accelerated carbonation test and a chloride ion permeation resistance test were undertaken. The results confirmed that the initial strength of the concrete, which utilized electrolysis alkaline aqueous as mixing water, exhibited an improvement in comparison to concrete mixed with conventional water. It was also verified that both carbonation resistance and chloride ion permeation resistance showed enhancements.

본 연구에서는 고로슬래그 미분말을 혼입한 콘크리트의 초기강도를 증진시키고, 탄산화 저항성과 염해 저항성을 향상시키기 위해 탄산칼륨을 전기분해하여 생성된 알칼리수를 배합수로 사용하여 콘크리트를 제작하였다. 초기강도 증진을 확인하기 위해 압축강도 측정을 진행하였으며, 촉진 탄산화 시험과 염소이온 침투저항성 시험을 진행하였다. 실험결과 일반 배합수를 사용한 콘크리트에 비해 전기분해 알칼리수를 배합수로 활용한 콘크리트의 초기강도가 증진된 것을 확인하였으며, 탄산화 저항성과 염소이온 침투저항성 또한 향상된 것을 확인하였다.

Keywords

Acknowledgement

This research was funded by the National Research Foundation of Korea(NRF), grant funded by the South Korean government(MSIT)(No. NRF-2020R1A2C1011957).

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