Ladle metallurgy stainless steel slag as a raw material in Ordinary Portland Cement production: a possibility for industrial symbiosis

Iacobescu, Remus Ion; Angelopoulos, G.N.; Jones, Peter Tom; Blanpain, Bart; Pontikes, Yiannis

doi:10.1016/j.jclepro.2015.06.006

Cited by 98 publications

(27 citation statements)

References 24 publications

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“…We could mention wastes from building demolition activities [15,16], the steel and metalworking industry [17,18], paper industry [19], rock quarrying activity [20], recycled glass [21] and waste generated by communities (sanitation-water treatment [22,23], and municipal waste management [24,25]). …”

Section: Cement Industrymentioning

confidence: 99%

Ability of Two Dam Fine-Grained Sediments to be Used in Cement Industry as Raw Material for Clinker Production and as Pozzolanic Additional Constituent of Portland-Composite Cement

Faure

Smith

Coudray

et al. 2017

Waste Biomass Valor

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other one is calcined in the range 550-1000 °C aiming to obtain a pozzolanic reactive material that could be used as supplementary cementitious material in blended Portland cement. After thermal treatments, the products are characterized and compared to ordinary Portland cement (OPC) and to pozzolanic active materials (fly ash from pulverized-coal power plant). Results showed that each sediment is suitable for the only tested reuse option. For the clinker prepared with SEP sediment, the morphology and the mineralogical composition correspond to those of a typical Portland clinker. Concerning calcined STA pozzolanic activity, the optimum thermal treatment was found to be 900 °C using the chemical Frattini test. Similar compressive strength results were obtained with calcined STA and silico-aluminous fly ash.Abstract Fine-grained sediment deposition is a phenomenon that occurs at different extents in all the reservoirs. This particle accumulation has to be properly managed, in accordance with the operational needs and the environment. As an extracted and on-land managed sediment has to be considered as a waste material according to both European and French regulations, sustainable reuse options need to be investigated. One of them could be a beneficial reuse as a raw material in cement industry either as partial substitution in Portland clinker raw mix or as a supplementary cementitious material (SCM) after thermal treatment in order to activate its possible pozzolanic activity. Two dredged materials, labelled SEP and STA, both from French hydroelectric reservoirs, are characterized on physical, chemical and mineralogical aspects. SEP is used as raw material partial replacement for clinker synthesis and the The original version of this article was revised due to a retrospective Open Access order.

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Section: Cement Industrymentioning

confidence: 99%

Ability of Two Dam Fine-Grained Sediments to be Used in Cement Industry as Raw Material for Clinker Production and as Pozzolanic Additional Constituent of Portland-Composite Cement

Faure

Smith

Coudray

et al. 2017

Waste Biomass Valor

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“…A matéria-prima utilizada na produção do cimento Portland e o combustível trazem consigo elementos em menores quantidades que são incorporados na estrutura cristalina das fases durante a sinterização, que podem influenciar na reatividade dos cimentos [1]. Assim, por muitas vezes são estudadas as fases puras na perspectiva de uma melhor compreensão dos fenômenos envolvidos, seja no processo de produção com substituição de outros elementos nas fases [2][3][4] e suas consequências na reatividade do cimento [5][6][7], ou na busca de novas alternativas [8][9][10]. A maior dificuldade em relação à síntese das fases puras é a impossibilidade de um procedimento único que funcione para qualquer tipo de forno, mesmo fixando a quantidade de material, a temperatura e a rampa de aquecimento.…”

Section: Introductionunclassified

Síntese e caracterização das fases minerais C3S, C2S, C3A e C4AF para utilização em cimento tipo Portland

Barbosa

Portella

2019

Cerâmica

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ResumoAs principais fases contidas no cimento Portland são 3CaO.SiO 2 (C 3 S), 2CaO.SiO 2 (C 2 S), 3CaO.Al 2 O 3 (C 3 A) e 4CaO.Al 2 O 3 .Fe 2 O 3 (C 4 AF). No processo industrial estas apresentam incorporações de outros elementos que dependem das matérias-primas e dos combustíveis utilizados na queima. O uso das fases puras auxilia na compreensão dos fenômenos envolvidos no estado fresco e endurecido, porém sua produção isolada exige condições específicas. O objetivo foi realizar a síntese das fases com o intuito de obter a menor quantidade de polimorfos e CaO. Na caracterização das fases químicas foram utilizadas as análises de granulometria a laser, fluorescência de raios X e difração de raios X com a quantificação das fases pelo método de Rietveld. Foi obtida elevada pureza para o C 4 AF e o C 3 A. O C 3 S e o C 2 S apresentaram apenas um polimorfo, porém elevados teores de CaO, 4,9 e 5,1%, respectivamente. Palavras-chave: síntese, cimento Portland, clínquer, polimorfismo. AbstractThe main phases contained in the Portland cement are 3CaO.SiO 2 (C 3 S), 2CaO.SiO 2 (C 2 S), 3CaO.Al 2 O 3 (C 3 A), and 4CaO.Al 2 O 3 . Fe 2 O 3 (C 4 AF). In the industrial process, these phases present incorporations of other elements that depend on the raw materials and the fuels used in the firing. The use of the pure phase helps in understanding the phenomena involved in the fresh and hardened state, however their isolated production requires specific conditions. The objective of this research was to perform the synthesis of the phases in order to obtain the minimum of polymorphs and CaO. In the characterization of the chemical phases obtained, the laser particle-size analysis, X-ray fluorescence and X-ray diffraction with the quantification by Rietveld method were used. High purity could be obtained for C 4 AF and C 3 A. The C 3 S and C 2 S phases had at most one polymorph, but high levels of CaO, 4.9 and 5.1%, respectively.

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“…As a major type of steel slag, basic oxygen furnace (BOF) slag has strong alkalinity, rich angularity, tough surface characteristics and relatively good mechanical properties [4]. BOF slag is widely used as aggregate in asphalt mixtures in related research [5][6][7]. Pasetto et al and Wu et al [8][9][10] demonstrated that BOF slag aggregates improve performance of asphalt mixtures, such as moisture stability, high temperature deformation resistance, abrasion and skid resistance.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Different Types of Basic Oxygen Furnace Slag Filler and its Influence on Properties of Asphalt Mastic

Kong

Chen

et al. 2019

Materials

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The fillers of ordinary and pyrolytic basic oxygen furnace (BOF) slag were selected to investigate the properties of their asphalt mastic. XRF (X-Ray Fluorescence) was used to analyze chemical composition of fillers. Meanwhile, SEM (Scanning Electron Microscope) and AIMS (Aggregate Image Measurement System) were utilized to explore meso-morphology, angularity and sphericity. Penetration, softening point and viscosity of asphalt mastic were discussed, while the rheological properties of asphalt mastic were studied by means of DSR (dynamic shear rheometer) and BBR (bending beam rheometer) tests. The experimental results show that chemical composition of different types of BOF slag is similar. The grinding energy consumption of pyrolytic BOF slag is higher than that of limestone and ordinary BOF slag. It is not recommended that pyrolytic BOF slag filler is produced by grinding process. The micro-texture structure of ordinary BOF slag filler is more abundant and their angularity index is about 15% higher than that of limestone filler. The stiffness modulus and rutting factor of asphalt mastic with ordinary BOF slag filler is higher than that of limestone filler. Meanwhile the incorporation of BOF slag filler will further reduce the low-temperature flow performance of asphalt mastic. The effect of pyrolytic BOF slag filler on the performance of asphalt mastic is less than that of ordinary BOF slag. Ordinary BOF slag filler can effectively improve high temperature anti-rutting stability of asphalt mixture. Ordinary BOF slag has a useful application prospect as filler in asphalt mixture.

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Ladle metallurgy stainless steel slag as a raw material in Ordinary Portland Cement production: a possibility for industrial symbiosis

Cited by 98 publications

References 24 publications

Ability of Two Dam Fine-Grained Sediments to be Used in Cement Industry as Raw Material for Clinker Production and as Pozzolanic Additional Constituent of Portland-Composite Cement

Ability of Two Dam Fine-Grained Sediments to be Used in Cement Industry as Raw Material for Clinker Production and as Pozzolanic Additional Constituent of Portland-Composite Cement

Síntese e caracterização das fases minerais C3S, C2S, C3A e C4AF para utilização em cimento tipo Portland

Characteristics of Different Types of Basic Oxygen Furnace Slag Filler and its Influence on Properties of Asphalt Mastic

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