Physico-Chemical Characterization of the Electric Arc Furnace Slag (EAFS) of the Sonasid-Jorf Steelworks - Morocco

Author(s):  
Ayoub Hamama ◽  
M. Harrami ◽  
M. Saadi ◽  
A. Assani ◽  
Adeljebbar Diouri

The steelmaking process results in the by-product formation of electric arc furnace slag (EAFS). Slag is recovered at two different stages of the steelmaking process, the first recovery is black and the second is white. The present research focuses on the composition differences between the two types of slag from SONASID-Jorf steel in Morocco. A granular separation of the black and white slag was carried out to monitor the chemical and mineralogical composition. XRD and Fourier Transform Infrared Spectroscopy are performed on the samples in this paper. The slags suggest good hydraulic binder properties. It would be useful for research in the field of building materials to correlate the results of the characterization of EAFS with other types of slag with the aim of improving the potential for partial replacement of cement in the matrix. The slag can also be used as binders in mixtures of bio-based building materials. The electric arc furnace slag (EAFS), exhibiting appropriate cementitious activity, can be utilized as mineral admixture in cement and concrete. Black and white slags are studied in this paper in order to determine their characteristics according to their granularity.

2021 ◽  
Vol 9 (2) ◽  
pp. 53-57
Author(s):  
Osama Daoud ◽  
Muntasir Ibrahim

This research paper focuses on the possibility of utilization of Giad electric arc furnace slag (GEAFS) as a partial replacement for coarse aggregates in concrete, without compromising on its workability and strength. The electric arc furnace slag is a waste product from the steel manufacturing which may be used as partial replacement of coarse aggregates in concrete. This paper presents an experimental study on fresh and hardened properties of concrete containing steel slag aggregates. Slump, as well as strength properties of concrete prepared with natural coarse aggregate, partially replaced by the GEAFS in different proportions varying from 25 %, 50 % and 75 %. The GEAFS concrete shows marginal decrease in slump for the further replacement. Compressive, split and Flexural strength of the GEAFS concrete have been increased for the GEAFS addition. Highest compressive, tensile and flexural strength have been achieved by the mix containing 50 % GEAFS coarse aggregates. Using of steel slag will result in decrease of waste landfilling, and improving environmental condition.  


2022 ◽  
Vol 316 ◽  
pp. 125553
Author(s):  
Aratz Garcia-Llona ◽  
Vanesa Ortega-Lopez ◽  
Ignacio Piñero ◽  
Amaia Santamaría ◽  
Miquel Aguirre

2020 ◽  
Vol 159 ◽  
pp. 106644
Author(s):  
Ting Su ◽  
Rui Bian ◽  
Yu Chen ◽  
Suiyi Zhu ◽  
Yang Huo ◽  
...  

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