Download scientific diagram | Main phases of a Life Cycle Analysis study. from publication: Comprehensive Analysis of Steel Slag as Aggregate for Road Construction: Experimental Testing and ...
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Based on the four scenarios of different internal recycling strategies for BOF slag, life cycle assessment (LCA) as a valuable tool for industrial solid waste management was applied to analyze the ...
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Rutting was not significantly different from the control section when steel slag was used in the base and/or subbase pavement structure. Rutting increased from 12.5 to 17.9 mm at the end of design life when slag was used in the WC layer. Further increase in rutting resulted when the steel slag was introduced in the BBC layer.
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Through the simulation of steelmaking process and life cycle assessment, the impact of new process on environment and energy is analysed quantitatively. It provides a new …
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Keywords Steel slag Concrete Life cycle assessment Cost estimation Introduction Steel slags are the byproducts of the steel industry, and in the long term, electric arc furnaces are expected to be used increasingly for the production of steel, increasing accordingly the amount of electric arc furnace (EAF) slags produced [1].
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The steel industry is focused on reducing its environmental impact. Using the life cycle assessment (LCA) methodology, the impacts of the primary steel production via the blast furnace route and the scrap …
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Introduction: Sand, steel slag and the application of life cycle assessment. Concrete – one of the primary materials in buildings and civil engineer structures – is the second most consumed product on earth, after water [1]. One of its compositions is fine aggregate, whereby sand is the dominant choice. ...
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Keywords: steel slag, road materials, life cycle assessment, experimental testing, recycled materials, circular economy. 1. Introduction. Steel slag is the main source of solid waste in the steel industry . It is obtained either by melting scrap with a high electric current in an electric arc furnace (EAF) or by processing hot melted metal ...
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DOI: 10.1016/j.rcradv.2022.200108 Corpus ID: 251164211; Life cycle assessment of melting reduction treatment for iron and steel waste slag: A case study in Tangshan, China @article{Li2022LifeCA, title={Life cycle assessment of melting reduction treatment for iron and steel waste slag: A case study in Tangshan, China}, author={Yanlong Li and Mei …
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Steel slag is a byproduct from either the conversion of iron to steel in a basic oxygen furnace, or the melting of scrap to make steel in an electric arc furnace. This paper reviews the production, processing, and characteristics of steel slag, and its use as a cementing component in different cementing systems. ...
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Achieving decarbonization in the steel industry is of paramount importance for global carbon neutrality. Given the unavoidable generation of calcium-containing steel slag and carbon-rich flue gas emissions in the steelmaking process, steel slag carbonation is considered a CCUS technology capable of achieving pollution and carbon reduction in …
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DOI: 10.1016/j.scitotenv.2023.161440 Corpus ID: 255567506; Combining organizational and product life cycle perspective to explore the environmental benefits of steel slag recovery practices.
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Using the life cycle assessment (LCA) methodology, the impacts of the primary steel production via the blast furnace route and the scrap-based secondary steel …
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With the results obtained, probabilistic service life prediction was done. This service life together with the material's strength was used as input for life cycle assessment of an axially loaded column. Results show that the environmental impact of fly ash and slag concrete is less than half the impact of traditional concrete.
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Blast Oxygen Furnace (BOF) slag represents one of the largest waste fractions from steelmaking. Therefore, slag valorisation technologies are of high importance regarding the use of slag as a secondary resource, both in the steel sector and in other sectors, such as the construction or cement industries. The main issue regarding the …
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Potency of direct CO 2 reduction by establishing waste-to-resource supply chain exemplified by iron and steel slags including blast furnace slag (BFS), basic oxygen furnace slag (BOFS), and...
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Marina also pointed out in his life cycle assessment (LCA) study on steel slag that the high yield of steel slag means that slag accumulation is a thorny issue.
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Case Studies in Construction Materials (Jul 2023) . Towards the sustainable utilization of steel slag in asphalt pavements: A case study of moisture resistance and life cycle assessment
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Many restrictions exist, however, on the utilization of steel slag. When steel slag is used internally, in steel plants, the most obvious problem is that of the enrichment of P and S (Drissen et al., 2009).The Bhilai Steel Plant in India was shut down because of its high S and P content (Das et al., 2007).The amounts of free lime and free MgO are …
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Sustainability in the construction industry refers to all resource-efficient and environmentally responsible processes throughout the life cycle of a structure. Green buildings may incorporate reused, recycled, or recovered materials in their construction. Concrete is as an important building material. Due to the implementation of by-products …
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DOI: 10.1016/J.JCLEPRO.2014.05.064 Corpus ID: 153882411; Cradle-to-gate life cycle assessment of precipitated calcium carbonate production from steel converter slag @article{Mattila2014CradletogateLC, title={Cradle-to-gate life cycle assessment of precipitated calcium carbonate production from steel converter slag}, author={Hannu …
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According to the life cycle inventory of the Portland Cement Association, ... The steel slag is used as a secondary cementitious binder or aggregates for road construction. The slag aggregate is an ideal replacement to natural aggregate to utilize in the base course and subbase course [13].
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This study investigates the effect of using steel slag in different layers of a flexible pavement structure on the permanent deformation performance and life cycle cost (LCC). Materials were obtained from a recent expressway pavement construction project. Physical and chemical properties of steel slag produced in Oman indicated that it can …
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Depending on the reactivity of the chosen slag fraction, this approach results to NH 4 Cl concentration of 0.5–1.0 mol/L, when slag-to-solution ratio is 100 g/L. (Mattila and Zevenhoven, 2014) Even though the materials are handled effectively, separating the solvent salt to from the solids leaving the system, i.e. slag residue and the PCC ...
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Towards the Sustainable Utilization of Steel Slag in Asphalt Pavements: A Case Study of Moisture Resistance and Life Cycle Assessment. The large-scale promotion of steel slag (SS) in pavement construction remains challenging due to the concern of swelling potential. ... The adhesion of steel slag to asphalt is 137.58%, 120.39% and 37.06% higher ...
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Influence of steel slag and steel fiber on the mechanical properties, durability, and life cycle assessment of ultra-high performance geopolymer concrete. Author links open overlay panel Zikai Xu a b, Jiupeng Zhang a b, Jiajun Zhang a, Qiquan Deng a, Zhijia Xue a, Guojing Huang a b, Xiaoming Huang c.
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The life cycle in this study started from the stage of raw materials' production, which included aggregates and bitumen. The environmental impacts mainly …
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The granulated steel slag is formed into a packed bed, and then the lower portion of the packed bed is filled with water and methane to recover the heat. The steel slag provides heat for the reaction and converts water vapor and CH 4 into H 2 and CO. The generated reaction is shown in Equation .
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@article{Li2024TowardsTC, title={Towards the Co-benefits of carbon capture, utilization and sequestration: A life cycle assessment study for steel slag disposal}, author={Zijie Li and Yi Xing and Mengying Ma and Wei Su and Yongkang Cui and Jinglei Tian and Fan Fei}, journal={Journal of Cleaner Production}, year={2024}, url={https://api ...
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Steel slag (SS) is regarded as a potentially promising alternative material for road construction, which could ameliorate the shortage of high-quality aggregate and environmental pollution of SS accumulation simultaneously. ... "Life cycle assessment and life cycle cost analysis of recycled solid waste materials in highway pavement: A review ...
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