Calcium aluminate rich secondary stainless steel slag as a supplementary cementitious material

2016 ◽  
Vol 116 ◽  
pp. 216-225 ◽  
Author(s):  
Ana Mladenovič ◽  
Breda Mirtič ◽  
Anton Meden ◽  
Vesna Zalar Serjun
Keyword(s):  
Stainless Steel ◽  
Calcium Aluminate ◽  
Steel Slag ◽  
Cementitious Material ◽  
Stainless Steel Slag ◽  
Supplementary Cementitious Material

scholarly journals Alkali-Activated Stainless Steel Slag as a Cementitious Material in the Manufacture of Self-Compacting Concrete

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3945
Author(s):  
Julia Rosales ◽  
Francisco Agrela ◽  
José Luis Díaz-López ◽  
Manuel Cabrera
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Fly Ash ◽  
Steel Slag ◽  
Cementitious Material ◽  
Self Compacting Concrete ◽  
Stainless Steel Slag ◽  
Alkali Activated ◽  
Activating Solution

This work develops the manufacture of self-compacting concrete (SCC) with 50% cement reduction. As an alternative binder to cement, the viability of using an alkali-activated combination of stainless steel slag (SSS) and fly ash (FA) has been demonstrated. SSS was processed applying three different treatments. Binders were manufactured mixing 35% SSS with 65% FA, as precursors, and a hydroxide activating solution. This binder was replaced by the 50% cement for the manufacture of SCC. The results obtained show good mechanical properties and durability. The study shows a reduction in the use of cement in the manufacture of SCC reusing two wastes.

scholarly journals Experimental Study on Precipitation Behavior of Spinels in Stainless Steel-Making Slag under Heating Treatment

Processes ◽  
2019 ◽  
Vol 7 (8) ◽  
pp. 487 ◽  
Author(s):  
Jianli Li ◽  
Qiqiang Mou ◽  
Qiang Zeng ◽  
Yue Yu
Keyword(s):  
Particle Size ◽  
Stainless Steel ◽  
Steel Slag ◽  
Calcium Content ◽  
Heating Time ◽  
X Ray Diffraction ◽  
Stainless Steel Slag ◽  
Steel Making ◽  
Heating Treatment ◽  
The Stability

The stability of chromium in stainless steel slag has a positive correlation with spinel particle size and a negative correlation with the calcium content of the spinel. The effect of heating time on the precipitation of spinel crystals in the CaO-SiO2-MgO-Al2O3-Cr2O3-FeO system was investigated in the laboratory. Scanning electron microscopy with energy-dispersive and X-ray diffraction were adopted to observe the microstructure, test the chemical composition, and determine the mineral phases of synthetic slags, and FactSage7.1 was applied to calculate the crystallization process of the molten slag. The results showed that the particle size of the spinel crystals increased from 9.42 to 10.73 μm, the calcium content in the spinel crystals decreased from 1.38 at% to 0.78 at%, and the content of chromium in the spinel crystal increased from 16.55 at% to 22.78 at% with an increase in the heating time from 0 min to 120 min at 1450 °C. Furthermore, the species of spinel minerals remained constant. Therefore, an extension in the heating time is beneficial for improving the stability of chromium in stainless steel slag.

Stabilization of Stainless Steel Slag via Air Granulation

2019 ◽  
Vol 5 (2) ◽  
pp. 157-171 ◽  
Author(s):  
Mikael Lindvall ◽  
Lily Lai Chi So ◽  
Mahdi Mahdi ◽  
Janice Bolen ◽  
Johannes Nell ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Steel Slag ◽  
Stainless Steel Slag

Crystallization mechanism of glass-ceramics prepared from stainless steel slag

Rare Metals ◽  
2018 ◽  
Vol 37 (5) ◽  
pp. 413-420 ◽  
Author(s):  
Wen-Di Fan ◽  
Qiang-Wei Yang ◽  
Bin Guo ◽  
Bo Liu ◽  
Shen-Gen Zhang
Keyword(s):  
Stainless Steel ◽  
Steel Slag ◽  
Glass Ceramics ◽  
Crystallization Mechanism ◽  
Stainless Steel Slag

Carbonation of stainless steel slag in the context of in situ Brownfield remediation

2014 ◽  
Vol 59 ◽  
pp. 91-100 ◽  
Author(s):  
Oriana Capobianco ◽  
Giulia Costa ◽  
Laurens Thuy ◽  
Elisa Magliocco ◽  
Niels Hartog ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Steel Slag ◽  
Stainless Steel Slag
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