高炉スラグ粗粉を用いたコンクリートの圧縮強度および耐久性に関する基礎的研究(都市環境工学科)

概要

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Ground granulated blast-furnace slag has been used as a mineral admixture for concrete, but the range of its specific surface area is generally from 3000 to 10000cm ^2/g, as it is specified by Japan Industrial Standard. Energy for grinding will be saved if blast-furnace slag with low fineness could be used as a mineral admixture of concrete. The purpose of this research is to study various properties of concrete containing blast-furnace slag with fineness from 1000 to 2000cm^2/g. Long-term compressive strength test, freezing and thawing test and carbonation depth measurement were carried out. It is proved that long-term strength development can be expected when the blast-furnace slag with low fineness is used. The durability becomes lower as the blast-furnace slag content is higher, but it can be improved by decreasing water-binder ratio. From these experimental results, it can be said that blast-furnace slag with low fineness can be used as a concrete admixture.
足利工業大学の論文
2004-03-18