Activity of Reducing Steel Slag of EAF

武汉理工大学学报-材料科学版(英文版), 2011, 26(1): 165-171. doi: 10.1007/s11595-011-0190-8

^1, , ^2, , ^3,

1.Department of Construction Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, China

2.Department of Construction Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, China

3.Department of Construction Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, China

Activity of Reducing Steel Slag of EAF

GUO Chinhsiang ^1, , HWANG Chaolung ^2, , LIN Tingyi ^3,

1.Department of Construction Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, China

2.Department of Construction Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, China

3.Department of Construction Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, China

Keywords： strength activity index

Reducing steel slag (RSS) was mainly acquired from five electric-arc furnace (EAF)steelmaking plants (among them, the products of two plants were carbon steel and those of other plants were stainless steel) for research tests. The chemical properties, compound compositions, activities and contents of main expansive compounds were tested. The results showed that the field sampled RSS had a very high crystallinity and hydraulicity with main chemical compositions close to those of Portland cement. It can be known from the study that in case of C/S ratio higher than 2.0, the main compound compositions are C2S, C3S, C2F and f-CaO. However, after the RSS was stored for six months, an obvious variation occurred with potential pre-hydration in RSS, where the SO3 content was slightly reduced and the compressive activity index was obviously higher than that at the 28th day.

参考文献

[1]	Juan M. Manso;Juan A. Polanco;Milagros Losanez .Durability of concrete made with EAF slag as aggregate[J].Cement & concrete composites,2006(6):528-534.
[2]	Moises Frias;C. Rodriguez .Effect of incorporating ferroalloy industry wastes as complementary cementing materials on the properties of blended cement matrices[J].Cement & concrete composites,2008(3):212-219.
[3]	Moises Frias Rojas;M.I. Sanchez de Rojas .Chemical assessment of the electric arc furnace slag as construction material: Expansive compounds[J].Cement and Concrete Research,2004(10):1881-1888.
[4]	AKIRA TSUBONE .Direct Recycling of the Reducing Slag in EAF[J].SEAISI Quarterly,2006(4):32-38.
[5]	CHAO-LUNG HWANG;CHU-CHAN CHIANG .The Study on Partial Replacement of Portland Cement with EAF Slag in Concrete[J].SEAISI Quarterly,2006(4):39-43.
[6]	Juan M. Manso;Javier J. Gonzalez;Juan A. Polanco .Electric Arc Furnace Slag in Concrete[J].Journal of Materials in Civil Engineering,2004(6):639-645.
[7]	CHEN Meizhu,ZHOU Mingkai,WU Shaopeng.Optimization of Blended Mortars Using Steel Slag Sand[J].武汉理工大学学报(材料科学版),2007(04):741-744.
[8]	Cementing properties of steel slag activated by sodium silicates and sodium hydroxide[J].北京科技大学学报（英文版）,2005(05):464-468.

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Activity of Reducing Steel Slag of EAF

参考文献