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http://dx.doi.org/10.7844/kirr.2018.27.1.106

Influence of Drying Methods on Measurement of Hydration Degree of Hydraulic Inorganic Materials: 2) Alkali-activated slag  

Lee, Hyo Kyong (School of Architecture, Chosun University)
Song, Keum-Il (School of Architecture, Chonnam National University)
Song, Jinkyu (School of Architecture, Chonnam National University)
Kim, Hyeong-Ki (School of Architecture, Chosun University)
Publication Information
Resources Recycling / v.27, no.1, 2018 , pp. 106-117 More about this Journal
Abstract
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.
Keywords
Alkali activated slag; non-evaporable water content; vacuum drying; oven drying; ignition; degree of hydration;
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Times Cited By KSCI : 1  (Citation Analysis)
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