Use of steelworks slag in Europe

Geiseler, Jürgen

doi:10.1016/s0956-053x(96)00070-0

Cited by 220 publications

(122 citation statements)

References 1 publication

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“…The most common methods for disposal of MSW, for example, are: landfill (82%), recycling or composting (11%) and thermal treatment (7%) (Fernández-Bertos et al, 2004a). On the other hand, the treatment approach for BOF residue is dumping and partial reuse as an aggregate for civil engineering due to its good technical properties (Geiseler, 1996;De Windt et al, 2011). In the United States, steelmaking slag is currently sold and used for various applications, predominantly for asphalt and concrete aggregate and road base (Stolaroff et al, 2005).…”

Section: Performance Evaluationmentioning

confidence: 99%

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

352

193

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CO 2 capture, utilization, and storage (CCUS) is a promising technology wherein CO 2 is captured and stored in solid form for further utilization instead of being released into the atmosphere in high concentrations. Under this framework, a new process called accelerated carbonation has been widely researched and developed. In this process, alkaline materials are reacted with high-purity CO 2 in the presence of moisture to accelerate the reaction to a timescale of a few minutes or hours. The feedstock for accelerated carbonation includes natural silicate-minerals (e.g., wollastonite, serpentine, and olivine) and industrial residues (e.g., steelmaking slag, municipal solid waste incinerator (MSWI) ash, and air pollution control (APC) residues). This research article focuses on carbonation technologies that use industrial alkaline wastes, such as steelmaking slags and metalworking wastewater. The carbonation of alkaline solid waste has been shown to be an effective way to capture CO 2 and to eliminate the contents of Ca(OH) 2 in solid residues, thus improving the durability of concrete blended with the carbonated residues. However, the operating conditions must be further studied for both the economic viability of the technology and the optimal conditions for CO 2 reaction.

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Section: Performance Evaluationmentioning

confidence: 99%

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

352

193

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“…sand and gravel) and the cost of using quarries is relatively low, these materials are largely used for embankments and land reclamation projects (Massarsch, 1991, Watts and Cooper, 2011, Zekkos and Flanagan, 2011. However, the use of fresh aggregates is often uneconomical and also the production of industrial waste materials such as coal wash and steel furnace slag from mining activities and steel making has been rapidly increasing (Leventhal, 1996, Geiseler, 1996. Therefore, from a waste management perspective, recycling and re-using industrial by-products rather than disposal, is an alternative and much preferred method.…”

Section: Introductionmentioning

confidence: 99%

A Laboratory Study on the Shear Behavior of Mixtures of Coal Wash and Steel Furnace Slag as Potential Structural Fill

et al. 2015

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The accumulation of industrial waste materials (e.g., coal wash and steel furnace slag) has become a critical environmental problem in Australia in recent years. The possible re-use of these types of materials as structural fill for transport embankments and land reclamation is one of the preferred options from a waste management perspective. Consequently, an experimental testing program was undertaken using the triaxial apparatus to evaluate the shear behavior of compacted mixtures of coal wash (CW) and steel furnace slag (SFS). The effect of varying the confining pressure and the percentage of coal wash on the isotropic compression line, the stress-strain behavior, and particle degradation during drained shearing was evaluated. The percentage of coal wash was found to influence the shearing behavior of the CW-SFS mixtures. When the content of coal wash increased, the shear strength of the CW-SFS mixtures decreased and the axial strain corresponding to the peak stress ratio increased. Moreover, the incidence of particle breakage increased for those mixtures with a higher CW content due to the low particle strength of CW. This paper also provided a non-linear strength envelope and a corresponding empirical equation to capture the shear strength of CW-SFS mixtures. Disciplines Engineering | Science and Technology Studies Publication DetailsTasalloti, S. M. A., Indraratna, B., Rujikiatkamjorn, C., Heitor, A. & Chiaro, G. (2015). A laboratory study on the shear behavior of mixtures of coal wash and steel furnace slag as potential structural fill. Geotechnical Testing Journal, 38 (4), 361-372. AbstractThe accumulation of industrial waste materials (e.g. coal wash and steel furnace slag) has become a critical environmental problem in Australia in recent years. The possible re-use of these types of materials as structural fill for transport embankments and land reclamation is one of the preferred options from a waste management perspective. Consequently, an experimental testing program was undertaken using the triaxial apparatus to evaluate the shear behaviour of compacted mixtures of coal wash (CW) and steel furnace slag (SFS). The effect of varying the confining pressure and the percentage of coal wash on the isotropic compression line, the stress-strain behaviour, and particle degradation during drained shearing was evaluated. The percentage of coal wash was found to influence the shearing behaviour of the CW-SFS mixtures. When the content of coal wash increased the shear strength of the CW-SFS mixtures decreased and the axial strain corresponding to the peak stress ratio increased. Moreover, the incidence of particle breakage increased for those mixtures with a higher CW content due to the low particle strength of CW. This paper also provides a non-linear strength envelope and a corresponding empirical equation to capture the shear strength of CW-SFS mixtures.

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“…In addition, the volumetric instabilities can be combined with a retarded hydration when slags containing free MgO or MgO-based compounds are used in the production of mortars or concretes [2][3][4][5]. It is generally accepted that a better stability could be obtained when the slag is pre-treated by different methods such as long time weathering of the granulated slag outside the slag pits, treatment of the liquid slag by injecting oxygen and silica, autoclaving of the slag in baskets [6,7] and others [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Production and Compression Strength of Mortars Containing Unprocessed Waste Powdered Steel Slag

et al. 2017

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This paper deals with the production of mortars prepared using a commercial CEMIIB-S 42.5N cement, a natural aggregate, steelmaking slag, a superplasticizer and water. The as-received unprocessed steel slag was milled by a hammer mill and then sieved to obtain batches with different maximum particle size. Each batch was used, together with the other components, in the production of mortars which were tested, by compression and water absorption, after different aging times in order to evaluate their long term stability. Several slag-free samples were also prepared as reference materials. All mortars were prepared with fixed aggregate/cement ratio (6/1), superplasticizer/cement ratio (s/c) and water/cement ratio (w/c). It has been demonstrated that an adequate protocol for the preparation and the use of slag containing particles with 2500 µm maximum size lead to the production of materials with mechanical properties suitable for civil engineering applications after aging for 28, 90 and 180 days. However, samples containing slag particles with size equal or greater than 1000 µm display a decay of mechanical properties after longer aging in water or after accelerated aging.

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Use of steelworks slag in Europe

Cited by 220 publications

References 1 publication

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

A Laboratory Study on the Shear Behavior of Mixtures of Coal Wash and Steel Furnace Slag as Potential Structural Fill

Production and Compression Strength of Mortars Containing Unprocessed Waste Powdered Steel Slag

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