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수경성 무기재료의 수화도 측정에 대한 건조방법의 영향: 2) 알칼리 활성 슬래그
이효경,송금일,송진규,김형기,Lee, Hyo Kyong,Song, Keum-Il,Song, Jinkyu,Kim, Hyeong-Ki 한국자원리싸이클링학회 2018 資源 리싸이클링 Vol.27 No.1
The present study was carried out to find a suitable drying method for the determination of non-evaporable water in hydraulic inorganic materials. In Part 1 of the paper, the case ordinary Portland cement was discussed and, in this Part 2, the case of alkali active slag (AAS) was investigated. Various drying methods including vacuum and oven drying, and an ignition, were used for the AAS system having different w/b, types and amounts of alkali activators. It was found that a combination of the vacuum and oven drying was a suitable drying method for the AAS case. Although a part of the crystallized water in hydration products was decomposed, but the free and adsorbed water could be completely evaporated and the deviation of the results was small.