电弧炉镍铁渣砂和镍铁渣粉的组成特性与适用性分析

doi:10.11896/cldb.18090183

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Abstract In order to use electric furnace ferronickel slag (FNS) safely and efficiently, the composition and suitable application of typical FNS sand and FNS powder were analyzed by means of XRF, XRD, SEM-EDS, TG, FTIR and laser particle size analyzer. The results show that, there are more amorphous phases in the surface of FNS sand. MgO in FNS exists in two forms, one is mineral crystalline phase in large size FNS sand, the another one is amorphous phases in small size FNS sand. The use of FNS sand can be classified according to its particle size: the large size FNS can be used to replace part of sand, while the small size FNS can be ground and used as concrete admixture. Due to the existence of air pores, the crushing value of FNS sand decreases with the increase of particle size. In addition, the content of Cr element in small FNS powder is less than that of other particles, while the distribution of other elements in FNS is not obvious. The presence of a small amount of carbonate in FNS powder may affect the composition of cement hydration products.

Key words： ferronickel slag sand ferronickel slag powder composition

Published: 16 September 2019

CLC number:

TU528

Fund:This work was financially support by China-Japan Joint Research Cooperative Program sponsored by Ministry of Science and Technology in China (2016YFE0118200), the National Natural Science Foundation of China (51778132), the National Basic Research Program (973 Program) of China (2015CB655100) and the Fundamental Research Funds for the Central Universities and Postgraduate Research & Practice Innovation Program of Jiangsu Pro-vince (KYCX17_0068).

About author:: Baoliang Li received his M.S. degree in materials scie-nce and engineering from University of Jinan in 2011. From September 2015 till now, he has been pursuing his Ph.D. at School of Materials Science and Enginee-ring, Southeast University under the supervision of Prof. Yamei Zhang. His research has focused on Ferronickel slag based composite cementitious materials.
Yamei Zhang, received her PhD. degree in structural engineering from Southeast University in 1998. She is currently a professor in Southeast University. Her research interests include the resource utilization techno-logy of solid waste, alkali activated cementitious materials, building energy-saving new materials, high-performance fiber reinforced cementitious composites, etc.

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	LI Baoliang
	WANG Yuehua
	PAN Dong
	YANG Liang
	ZHANG Yamei

Cite this article:

LI Baoliang,WANG Yuehua,PAN Dong, et al. Composition and Suitable Application of Electric Furnace Ferronickel Slag Sand and Ferronickel Slag Powder[J]. Materials Reports, 2019, 33(22): 3752-3756.

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http://www.mater-rep.com/EN/10.11896/cldb.18090183 OR http://www.mater-rep.com/EN/Y2019/V33/I22/3752

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