Slag; Value Added Steel Industry Byproducts

Joulazadeh, Mohammad Hassan; Joulazadeh, F.

doi:10.2478/v10172-010-0017-1

Cited by 25 publications

(18 citation statements)

References 1 publication

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“…The typical chemical composition of basic oxygen steelmaking slag is shown in Table 1 (Shi, 2004). Slag is a mainly non-metallic by-product that is made up of silicates, alumina silicates, calcium aluminum silicates, and iron oxides (Joulazadeh and Joulazadeh, 2010). During the BOS process a proportion of the molten iron cannot be recovered so elemental iron is often observed in the slag (Yildirim and Prezzi, 2011).…”

Section: Composition and Physical Propertiesmentioning

confidence: 99%

“…Around 20 million tons of slag is produced annually in Europe, half of which is produced is BOS slag , meaning that large quantities of industrial by-products are produced each year. One obvious alternative to landfilling such byproducts would be to reutilize the slag in steelmaking or use for secondary applications (Joulazadeh and Joulazadeh, 2010). Records show that as early as 1589 steelmaking slag has been used to make cannon balls in Germany (Joulazadeh and Joulazadeh, 2010), and in the 1950's slag was utilized to stabilize riverbanks as well as railway ballast, artificial stone and acoustic and thermal insulation (Garside, 1956;Motz and Geiseler, 2001).…”

Section: Introductionmentioning

confidence: 99%

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The recycling and reuse of steelmaking slags — A review

Fisher

Barron

2019

Resources, Conservation and Recycling

195

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Section: Composition and Physical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The recycling and reuse of steelmaking slags — A review

Fisher

Barron

2019

Resources, Conservation and Recycling

195

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“…The main gradients of the steel slag are Al2O3, Cr2O3, CaO, MgO, SiO2, and TiO2 [6,10]. In addition, it obviously consists of silicates, alumina silicates, calcium, iron oxides and crystalline compounds [11]. During the process of minimizing iron ore by coke in a blast furnace, BF slag is produced.…”

Section: Production Of Steel Slagmentioning

confidence: 99%

An Overview on Performance of Steel Slag in Highway Industry

Aziz¹,

Shokri²,

Ahsan³

et al. 2020

ARMS

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Transportation and highway industry are going to use sustainable and recycling materials to address the two global issues: environment and energy. One of the materials is steel-furnace slag, a sustainable waste material, which includes two types, i.e. compound aggregate brings out as a consequence of Electric Arc Furnace (EAF) and Basic Oxygen Furnace (BOF). Steel slag can replace the traditional aggregates because it has a feature that almost same to those traditional aggregates and it is easily secure as a by-product from the steel industry. The recent experimental researches in preliminary studies have demonstrated chemical, mechanical and physical and properties of the steel slag. California bearing ratio (CBR) value of steel slag is between 200 and 300%, whereas CBR of crushed aggregate is only from 80 to 100%. Furthermore, asphalt mixture using steel slag presents better mechanical characteristics than those of the corresponding asphalt with 100% natural aggregate. Combination of 30% steel slag and 70% natural aggregates in bitumen mixture shows excellent performance as surface course of roads. Hence, operation of steel slag in road construction reduces land fill, saves natural resources and improves the strength of pavement to sustain a heavier and higher volume of vehicles. The overall purposes of this review paper are collecting chemical, physical and mechanical characteristics of steel slag for illustrating its performance, highlighting the previous studies on the use of steel slag in road construction and the effect of different percentage of steel slag upon pavement as a replacement for natural aggregates.

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“…Because it has a low price, it is easy to obtain and it contains a lot of elements that benefit plant growth, slag has gradually entered the field of vision. Slag recycling was firstly used in agriculture to help in the remediation of soil acidity, the reduction in industrial waste water organic load or the releasing of potassium and silicate fertilizers [16,17]. In recent years, more and more researchers have realized the value of slags in greenhouse gas reduction and soil carbon fixation [18,19].…”

Section: Introductionmentioning

confidence: 99%

Manganese Slag Amendment Reduces Greenhouse Gas Emissions from Paddy Soil

et al. 2023

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Increasing crop productivity and minimizing greenhouse gas emissions from paddy fields are increasingly receiving attention. Slag application not only can maximize the use of solid wastes as beneficial resources for agricultural production, but it also reduces greenhouse gas emissions. In order to determine the most effective slags as soil amendments for greenhouse gas emission reduction, three major slags, i.e., steel, titanium and manganese slags, were applied as soil amendments to paddy soils; correspondingly, the greenhouse gas emissions, cumulative emissions and global warming potential of the soils during one growing season were measured. It was found that applying all these three slags could reduce the methane emission rates and the cumulative methane emissions. Manganese slag significantly decreased methane emissions by 55% compared with the control. Carbon dioxide caused no significant changes among different slag treatments; however, the cumulative carbon dioxide emissions from fields treated with steel and manganese slags were lower than those from control fields. The global warming potential of paddy soil with manganese application was 63% lower than that of the control. Finally, manganese oxide was found to have a negative relation with greenhouse gas emissions. It was inferred that the electron acceptors and the photocatalysis of manganese oxide minerals might have been the main reasons for greenhouse gas reduction. This preliminary result could be further applied to utilizing solid wastes as beneficial resources and to developing carbon fixation and greenhouse gas reduction fertilizers.

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Slag; Value Added Steel Industry Byproducts

Cited by 25 publications

References 1 publication

The recycling and reuse of steelmaking slags — A review

The recycling and reuse of steelmaking slags — A review

An Overview on Performance of Steel Slag in Highway Industry

Manganese Slag Amendment Reduces Greenhouse Gas Emissions from Paddy Soil

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