VALORISATION OF STAINLESS STEEL SLAGS AS A HYDRAULIC BINDER

被引：5

作者：

Kriskova, Lubica ^{[1
,2
]}

Pontikes, Yiannis ^{[1
,2
]}

Zhang, Fei ^{[1
]}

Cizer, Ozlem ^{[1
,2
]}

Jones, Peter Tom ^{[1
]}

van Balen, Koen ^{[3
]}

Blanpain, Bart ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Met & Mat Engn, Leuven, Belgium

[2] Katholieke Univ Leuven, Secondary Resources Bldg Mat Consortium Sustainab, Leuven, Belgium

[3] Katholieke Univ Leuven, Dept Civil Engn, Bldg Mat & Bldg Technol Div, Leuven, Belgium

来源：

ACTA METALLURGICA SLOVACA | 2013年 / 19卷 / 03期

关键词：

stainless steel slag; gamma - dicalcium silicate; merwinite; hydration; SEM;

D O I：

10.12776/ams.v19i3.159

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

This work is focused on exploring various cold and hot stage treatment paths of stainless steel slag as a tool to improve its hydraulic properties. At a cold stage, mechanical and chemical activation was applied on industrial stainless steel slag; and it was found that both activation methods effectively improve the reactivity of the studied slag. In addition, the detailed investigation of hydration on two major phases, gamma - C2S and merwinite, revealed that their hydration resulted in the formation of C - S - H gel, typically formed during the hydration of OPC. Regarding the hot stage treatment, the combination of the chemistry modification with the addition of fly ash at 30 wt. % and fast cooling by means of water quenching resulted in a complete amorphisation of the material. Ultimately, the produced material possessing similar properties to granulated blast furnace slag could be used as a latent hydraulic material in blended cements.

引用

页码：176 / 183

页数：8

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