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Title |
The Properties of Underwater-Hardening Epoxy Mortar Used the Rapidly Cooled Steel Slag (RCSS)
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Keywords |
급냉 제강슬래그 ; 수중 경화형 에폭시 모르타르 ; 플로우 ; 점도 rapidly-cooled steel slag ; underwater-hardening epoxy mortar ; flow ; viscosity ; O-lot |
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Abstract |
Although blast furnace slag has been widely used in concrete as a cementitious admixture or aggregate for many years, the slowly cooled steel slag is not used in concrete but mainly in road. Its use in concrete operates problem such as the lack of volume stability due to high free CaO content, which can be potentially hazardous in concrete. However, the rapidly cooled steel slag by atomization has a low free CaO content, a high density, and a spherical shape, so it is expected to use in concrete so much. This paper is to understand the probability that the rapid cooled steel slag can replace the silica sand used as aggregate in the epoxy mortar. We did the experimental study on the properties of the epoxy mortar having various replacement proportion of rapidly cooled steel slag. This study shown that increasing content of the rapidly cooled steel slag in epoxy mortar lead to increase largely the passing time of nozzle by O-lot, compressive strength and flexural strength. However except the flow is almost same level. So we understand that the rapidly cooled steel slag has positive effect on increasing of properties in epoxy mortar.
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