Experimental Study on the Effect of Compound Activator …

The influence of activator, steel slag powder, metakaolin, and silica fume on the resulting strength of steel slag cement mortar was investigated by orthogonal experiments. For four weight fractions of steel slag powder (10%, 20%, 30%, 40%), the experimental


Influence of Fineness and Vontent of Steel Slag Powder on ...

Taking fluidity and compressive strength of mortar as index, steel slag slag composite admixture replaces cement by 50%. The influence of the fineness and content of steel slag powder on the properties of composite admixture was studied by uniform experimental design. The fitting regression equation between the parameters of steel slag fineness and dosage and the …


LEACHING CHARACTERISTICS AND MINERALOGICAL …

 · STAINLESS-STEEL SLAG [email protected] IN MINERALO[KA KONTROLA KROMA V @LINDRI NERJAVNEGA JEKLA IZ ELEKTROOBLO^NE PE^I Ya-Jun Wang1,2, Ya-Nan Zeng1*, Jun-Guo Li1*, Zhi-Yuan Gao3 1School of Metallurgy and Energy, North China University of Science and Technology, 063009 Tangshan, P. R. China


EFFECT OF MODIFIER AND SUPERFINE STEEL SLAG …

With the increasing of iron and steel production, the rational utilization of waste steel slag is very important. At pres-ent, it is common to use steel slag as admixture of Portland cement and concrete. In order to further investigate the effect of modifier and superfine steel slag powder on properties of magnesium oxysulfate (MOS) cement, the ex-


The Difference Between Superfine Steel Slag Powder And ...

 · The slag powder is the water slag produced in the process of blast furnace iron smelting, and the powder formed after processing by the slag mill. The same point is that it needs to be pulverized by a mill to prepare a powder, and then make it a high value-added product, increasing the economic benefits of the enterprise.


1 APPLICATION OF STAINLESS STEEL SLAG WASTE AS A …

 · 2 38 stainless steel slag powder. This slag powder requires more storage space and also has 39 less value in the market than the slag used as aggregate for road construction [4]. 40 At present, both slags are generally treated as waste and dumped in landfills. Alternative 41 uses for these stainless steel slags could be applied. There are several previous studies for


CO2 activated steel slag-based materials: A review ...

 · Steel slag carbonation is a chemical reaction, under controlled conditions, between different silicates and CO 2 that mainly produces carbonates with binding properties. •. The slag-based binders and materials activated by CO 2 are produced by the combination of a grinded slag powder and water. •.


Applications of Steel Slag Powder and Steel Slag …

 · Portland cement, GGBS, steel slag and stainless steel slag as reported in different literatures. Compare to the oxide composition of OPC and GGBS, steel and stainless steel slags generally contain less lime (CaO), silica (SiO 2) and alumina (Al 2O 3), but contain more quantities of ferric oxides (Fe 2O 3) that cannot be


Cementitious binders from activated stainless steel ...

 · With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C.Higher levels of alkali–silicate in the activating solution resulted in higher cumulative heat suggesting …


A Study on the Utilization of Activated Steel Slag as ...

 · A Study on the Utilization of Activated Steel Slag as Partial Replacement of Cement in Concrete ... the cementiious part of steel slag powder is far more inactive than the Portland cement and as the hydration age increases, the gap between the strengths of ordinary/normal cement mortar and mortars with steel slag becomes smaller and smaller ...


Alkali-Activated Stainless Steel Slag as a Cementitious ...

The stainless steel slag (SSS) came from the company Acerinox Europa S.A.U., located in Los Barrios (Cádiz), Spain. The chemical and physical properties of …


No removal on activated coke mixed with steel slag and ...

 · The denitration test of low-temperature simulated sintering flue gas and the characterization of physical and chemical properties of activated coke were carried out. 70.3% NO removal was achieved at 120 °C even if the specific surface area of activated coke was only 71.62 m 2 g-1. Fe 2 O 3 of steel slag showed catalytic reductive activity.


Characteristics of Mortars with Blast Furnace Slag Powder ...

Recently, interest in environmentally friendly development has increased worldwide, especially in the construction industry. In this study, blast furnace slag powder (BFSP) and mixed steel fine aggregates were applied to cement mortars to reduce the environmental damage caused by the extraction of natural aggregate and to increase the recycling rate of steel by-products in the …


A Study on the Utilization of Activated Steel Slag as ...

 · steel slag – cement mix with 30% steel slag is 120 Minutes when compared to 75 Minutes of ordinary cement paste. i.e., there is a percentage retardation of 60%. This indicates that addition of steel slag can prolong the initial setting time. This )


Chemical, Mineralogical, and Morphological …

 · Steel slag is a byproduct of the steelmaking and steel refining processes. This paper provides an overview of the different types of steel slag that are generated from basic-oxygen-furnace (BOF) steelmaking, electric-arc …


Accelerated mineral carbonation of stainless steel slags ...

 · The stainless steel slags were also verified to capture more CO 2 than BOF slag as reported by Huijgen et al. (2005) and EAF slag as reported by Baciocchi et al. (2011); it was possible to reach 21–24 wt%,CO 2 with AOD and CC slags compared to reported maxima ∼15 wt%,CO 2 with finely milled BOF and EAF slags.


INVESTIGATION ON THE EFFECT OF SLAG AND …

 · activated metakaolin-slag mixes with ideal property, limestone powder was added from 0% to 20% by mass of the total binder to analyze its effects on strength and reaction products of the blended system. A overall water/binder ratio of 0.37 was used for all mixes, while the total water includes


Effect of mechanical activation on the ... - ScienceDirect

 · The LM and AOD slag used in this investigation were obtained from a producer of ferritic stainless steel. The LM slag was taken from the slag yard, without having been subjected to aging or any other treatment. The AOD slag was taken directly from the converter. The slag is in the form of a fine powder due to the β-C 2 S to γ-C 2 S


OPTIMISING THE USE OF EAF STAINLESS STEEL SLAG TO ...

 · with respect to slag neutralisation of acid baths using recycled steel slags. References 1. M. De Colle, P. G. Jönsson, A. Gauffin, A. Karasev, ^The use of recycled stainless-steel slags to replace lime for neutralization of acid baths _, in Proceeding of European Oxygen Steelmaking Conference (EOSC 2018), Taranto, Italy, 2018.


Carbonation-Activated Steel Slag Binder for Cement ...

 · Carbonation-Activated Steel Slag Binder for Cement Replacement and Carbon Utilization. ... The slags are ground to a size close to cement powder and compaction formed into a precast product. The slag compacts are then carbonated in a pressure chamber at ambient temperature with a gas pressure of 1-2 bar for different duration. The strength gain ...


Steelmaking Slag - IspatGuru

 · Steelmaking slag is a by-product of steelmaking. It is produced during the separation of the liquid steel from impurities in steelmaking furnaces. The slag occurs during steelmaking in liquid state. It is a complex solution of silicates and oxides that solidifies during cooling.


Effect of Modified Argon Oxygen Decarburization (AOD ...

Abstract. The stainless steel slag of argon oxygen decarburization (AOD) is a kind of alkaline waste with cementitious activity phase, which can change the β - C 2 S to γ - C 2 S phase in the process of natural cooling and reduce the cementitious activity of the steel slag. What's worse, the large difference of the density of the two crystal phases will lead the AOD slag to pulverize.


Alkali-Activated Stainless Steel Slag as a Cementitious ...

 · analyse the waste produced from one of the most dynamic production sectors, stainless steel slag (SSS). As a novelty in this work, activated stainless steel slag was used not as a substitute for aggregates in the manufacture of self-compacting concrete (SCC) but as a substitute for cement and limestone filler.


Stabilization of Black Cotton Soil by Using Steel Slag …

 · steel slag powder with soil percentage is increased up to 30%, value of plasticity index is reduced by 38.91%. The reduction in plasticity index is found due to use of non-plastic material Steel Slag Powder for modification. The result shows that on addition of Steel Slag Powder, as the percentage of Steel Slag Powder increases the liquid limit


(PDF) Reduction of synthetic stainless steel slags by ...

 · In order to improve the recycling efficiency of stainless-steel slag resources, the effect of different cooling rates on the crystallization behavior of CaO-SiO 2 …


METHOD FOR REDUCING TO METALLIC ... - …

What is claimed is: 1. A method for reducing to metallic chromium the chromium oxides found in slag formed in an electric arc furnace during a stainless steel making process, which method comprises maintaining said slag in a liquid phase while at the same time blowing into said furnace, via a carrier gas, powdered aluminum dross in a thrown in amount which satisfies the …


Alkali-Activated Stainless Steel Slag as a Cementitious ...

 · 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 …


Stabilization of Stainless Steel Slag via Air Granulation ...

 · In stainless steel production, slag from argon oxygen decarburization (AOD) converters is dumped on to the ground and then slowly cooled. The slag undergoes phase transformation from β-dicalcium silicate (β-C2S) to γ-dicalcium silicate (γ-C2S) at approximately 500 °C to 450 °C, resulting in slag volume expansion, disintegration, and dust generation. The …


Effect of Al2O3 modification on enrichment and …

 · Effect of Al2O3 modification on enrichment and stabilization of chromium in stainless steel slag Long-hu Cao,Cheng-jun Liu*,Qing Zhao,Mao-fa Jiang Key Laboratory for Ecological Metallurgy of Multimetallic Mineral Ministry of Education, Northeastern


Steel slag grinding plant - Great Wall

 · Crushing & Iron Separation. Grinding into Powder. After coming out of converter, steel slag is received and transported by slag pots. Due to the high temperature of the steel slag, the slag pot must have high quality. CHAENG slag pot is made by one-piece casting method, which has strong resistance to deformation.