MEASURING METHOD ON CARBONATE CONTENT BY USING IGNITION METHOD IN STEEL MAKING SLAG

MEASURING METHOD ON CARBONATE CONTENT BY USING IGNITION METHOD IN STEEL MAKING SLAG

In order to evaluate the progress of the carbonation of steel making slag quantitatively, the authors examined the methods to determine the carbonate content of steel making slag by using the ignition method that was one of the carbonate tests. As the results, it was found that the carbonate contain...

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Veröffentlicht in:Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering) Ser. C (Geosphere Engineering), 2015, Vol.71(1), pp.14-19
Hauptverfasser: SANO, Hiroaki, YAMADA, Mikio, KASHIWABARA, Tsukasa, KANEKO, Toshiyuki, SUMIGAWA, Keiji, NAKAMURA, Takatoshi
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carbonate content test
ignition method
steel making slag
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container_end_page 19
container_issue 1
container_start_page 14
container_title Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)
container_volume 71
creator SANO, Hiroaki
YAMADA, Mikio
KASHIWABARA, Tsukasa
KANEKO, Toshiyuki
SUMIGAWA, Keiji
NAKAMURA, Takatoshi
description In order to evaluate the progress of the carbonation of steel making slag quantitatively, the authors examined the methods to determine the carbonate content of steel making slag by using the ignition method that was one of the carbonate tests. As the results, it was found that the carbonate contained in steel making slag was completely disengaged by igniting more than 3 hours at 700°C and the carbonate content in steel making slag by using ignition method increased with decreasing the particles sizes of steel making slag. Furthermore, gas included in the samples of particle size 9.5-37.5mm expanded and ruptured under igniting at 540°C and so it was not possible to perform the ignition methods. Thus, in order to measure the carbonate content of the steel making slag by using the ignition method, it is necessary to ignite a 20g sample of particles smaller than 4.75mm in diameter for 3 hours or more.
doi_str_mv 10.2208/jscejge.71.14
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subjects carbonate content test
ignition method
steel making slag
title MEASURING METHOD ON CARBONATE CONTENT BY USING IGNITION METHOD IN STEEL MAKING SLAG
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