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

The Korea Association of Crystal Growth (한국결정성장학회)
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Characteristics of geopolymer based on recycling resources

재활용 폐자원에 따른 지오폴리머의 특성변화 연구

  • Kim, Yoo-Teak (Department of Materials Engineering, Kyonggi University) ;
  • Kim, Hyun-Jung (Department of Materials Engineering, Kyonggi University) ;
  • Jang, Chang-Sub (Department of Materials Engineering, Kyonggi University)
  • 김유택 (경기대학교 신소재공학부) ;
  • 김현정 (경기대학교 신소재공학부) ;
  • 장창섭 (경기대학교 신소재공학부)
  • Received : 2012.04.13
  • Accepted : 2012.06.11
  • Published : 2012.06.30
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Abstract

In this study, geopolymer was prepared with reject ash and blast furnace slag using NaOH as an alkali activator and water glass. The aim of this study was to investigate the compressive strength variation according to the contents of NaOH and water glass and replacement ratio of reject ash (RA) and blast furnace slag (BS). The compressive strength measured after 28 days was 38.91 MPa for the geopolymer which consist of 100 % of BS with 1 wt% NaOH and 3 wt% water glass. The major factor for improving compressive strength was the alkali activator proportion and the replacement ratio of RA and BS.

본 연구는 알칼리 활성화제로 NaOH와 물유리를 사용하고 리젝트애쉬와 고로슬래그를 혼합하여 지오폴리머를 제조하였다. 리젝트애쉬와 고로슬래그의 치환율과 물유리와 NaOH의 농도에 따른 압축강도를 측정하였다. 압축강도 측정결과로는 알칼리 활성화제로 NaOH 1 wt%, 물유리 3 wt%와 전량 고로슬래그를 사용한 경우 재령 28일차 강도가 38.91 MPa의 성능을 나타내었다. 압축강도 증진의 중요한 요인은 알칼리 활성화제의 비율과 리젝트애쉬와 고로슬래그의 치환율에 의한 것이었다.

Keywords

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