Steel Slag and Waste Management

Günay, Esin; Kara, Mustafa; Kavakli, B; Tayfur, Süreyya; Eren, K.; Yildirim, S A

doi:10.4028/www.scientific.net/kem.264-268.2481

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…They were classified as 25-40 mm, 19-25 mm, 5-19 mm and smaller than 5 mm. The chemical analysis and physical properties such as resistance to water action, to weathering, to abrasion, flatness index, specific gravity and water absorption of these slags were given in other paper of authors in this congress [4] and it was concluded that above mentioned steel slags satisfies the requirements to be used as an aggregate in asphaltic mixtures. The grading of steel slags was done by running the material through a series of sieves with progressively smaller opening and weighing the material retained on each sieve.…”

Section: Methodsmentioning

confidence: 99%

The Use of Steel Slag in Asphaltic Mixture

Kara

Günay

Kavakli³

et al. 2004

KEM

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Steel slag is a residue produced by refining iron to steel in open-hearth, basic oxygen and electric arc furnaces. It is liquid cooled from its molten state and has high density. The possibilities for the recycling of steel slag differ from country to country, depending on the chemical composition of the slags, steel making process, the national and local environmental regulations. Was first, normal to recycle 30% of the steel slag production internally in the steel works to the sinter and BOF plants. Nowadays, recycling slag by means of the sinter plant has declined because of the higher quality demands on steel production. Steel slags have several applications in the foreign countries. These are as a sub-base material for road construction, civil and marine engineering and agricultural use. Steel slag from a Turkish company has been used in asphaltic mixtures as an aggregate in this research. Steel slag was used in three levels of asphalt pavement as a bitumen base, binder and wearing layer. Physical properties of steel slag satisfied the requirements for using in asphaltic mixture.

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Section: Methodsmentioning

confidence: 99%

The Use of Steel Slag in Asphaltic Mixture

Kara

Günay

Kavakli³

et al. 2004

KEM

Self Cite

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“…During steel production, all unwanted elements and impurities are expelled as "slag" to guarantee maximum iron recovery (Government of India-Ministry of Steel, 2019). Steel slag waste has for many years been deposited in slag storage yards, farmlands, and surface water streams (Günay et al, 2004).…”

Section: Steel Slagmentioning

confidence: 99%

Waste materials in highway applications: An overview on generation and utilization implications on sustainability

Bamigboye

Bassey

Olukanni

et al. 2021

Journal of Cleaner Production

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The rate at which the construction industry explores and consumes non-renewable natural aggregates and other industrial products such as bitumen, lime, and cement during construction and rehabilitation of road pavements has over time proven to be environmentally degrading and non-sustainable. This, alongside the issues of high solid waste generation and inadequate disposal, has led to series of studies by various researchers to find methods to integrate these solid wastes as alternative materials in road construction and maintenance. This paper provides a simple yet detailed review of recent relevant studies conducted to understand the alarming rate of generation and the effects of reusing these waste materials in both flexible and rigid pavements. The review further outlines the advantages and disadvantages of the selected waste materials and compare the results with that of conventional materials in accordance with relevant standards while highlighting the performance, and life cycle environmental and economic sustainability implications. The study shows that the adoption of these materials offers efficiency in waste disposal while reducing the demand for natural aggregates and consequently, significantly reducing life cycle impacts and costs. The challenges limiting the effective practical implementation of these waste recycling techniques in the construction industry were discussed and possible solutions were suggested to encourage and ensure its utilization in road construction.

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Characteristics of Blast Furnace Slag Leachate Produced Under Reduced and Oxidized Conditions

Schwab

Hickey

Hunter

et al. 2006

Journal of Environmental Science and Health, Part A

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A laboratory study was conducted to determine the environmental conditions necessary to reproduce leachates observed emerging from blast furnace slag acting as the foundation of highways in northwest Indiana. The leachates in the field are often highly alkaline with a pungent sulfur odor, a distinct green or milky-white in color, and sulfate concentrations exceeding 2,000 mg/L. Slag was equilibrated in the laboratory under both oxidized and anoxic environments and at various slag:water ratios. Constant anoxic conditions were required to produce to green colors in the slag, but high sulfate concentrations were observed only when the suspensions were fully oxidized. Leachate from the study site appears to form as a result of a series of complex chemical reactions including fluctuating oxidized and reduced conditions.

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Steel Slag and Waste Management

Cited by 3 publications

References 3 publications

The Use of Steel Slag in Asphaltic Mixture

The Use of Steel Slag in Asphaltic Mixture

Waste materials in highway applications: An overview on generation and utilization implications on sustainability

Characteristics of Blast Furnace Slag Leachate Produced Under Reduced and Oxidized Conditions

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