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Showing 1 to 20 of 20 for “"Steel slag"”.
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The skidding resistance potential of steel slag aggregates.
Steel slag, a by-product of the steel industry, has been used in road construction in South Yorkshire and the surrounding areas for the past 60 years. There is anecdotal evidence of good performance from these materials which is supported by the fact that they continue to be used today to the …
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Performance of asphalt mixtures containing steel slag aggregate and synthetic fibers
… One of the well-known waste materials is steel slag aggregate, which is a byproduct of steel manufacturing. However, volume instability and high density are the main drawbacks of using steel slag aggregates. In this study, steel slag aggregates were immersed in water for six months to …
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Evaluating Filter Materials for E. Coli Removal from Stormwater
… filter materials. Two industrial byproducts (steel slag and steel chips) and two natural minerals (zeolite and limestone) with three different sizes (0.5-1 mm, 1-2 mm, and 2-4 mm) were chosen to investigate the potential of these materials as filter media for E. coli removal from stormwater. …
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Investigation on different vertical aerated rock filter (vertical aerated rock filter) in removing phosphorus from domestic wastewater
… response to this, the selection of media between steel slag and limestone for pilot scale filter has been investigated by receiving the same volumetric hydraulic loading rate and airflow rate. Based on the analysis, steel slag emerged as the best media in removing the selected parameters. …
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Automation of the Superpave mix design process for the West Virginia Division of Highways
… was then used to design asphalt mixes made of steel slag obtained from International Mill Service, Inc. (IMS) as the only aggregate type. Steel slag aggregate offers a cost effective alternative to conventional aggregates used in asphalt mixes. Various mix designs were created, using only steel …
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Evaluating Steel Byproducts and Natural Minerals for Phosphate Adsorption from Agricultural Subsurface Drainage
… including limestone, zeolite, calcite, steel slag, iron filings, and steel byproducts. Steel byproducts are a lowcost, readily available material that has high P adsorption potential. The steel byproducts included small chips, medium chips, and large turnings, which were collected from …
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LOW IMPACT DEVELOPMENT MIXTURE EVALUATION FOR HEAVY METAL REMOVAL
… 70% sand, 25% manure compost, and 5% steel slag by mass. The LIDMATTM was evaluated based on flow rate, pH, heavy metal removal, and the concentrations of N and P leached; conditions for optimum removal have been quantified. For treating synthetic stormwater runoff, 12 trials were …
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Geochemistry and Microbiology of Extremely Alkaline (Ph > 12) Ground Water in the Calumet Slag -Fill Aquifer
… of dihydrogen produced by reaction of water with steel slag is likely a primary energy source to the community. These results extend upward the known range of pH tolerance for a microbial community by as much as two pH units.
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Phosphorus in the Environment and its Role in Anaerobic Iron Corrosion
… phosphorus compounds are likely to originate in steel-making or thermal phosphorus plants. It was determined that reduced phosphorus would not be detected in routine environmental analyses even if they were present. A new method was developed to detect these compounds, and in a preliminary survey …
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Treatment of acid mine drainage with Weirton steel slags
… to treat acid mine drainage with Weirton steel slag which contained 72.22% as Ca(OH)2 equivalent. The Acid Mine Drainage (AMD) sample was obtained from the T&T site located in northern West Virginia. The pH of the solution was 2.56 and the iron content was 89 ppm. The bed was constructed …
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Contributions to predicting contaminant leaching from secondary materials used in roads
<p>Slags, coal ashes, and other secondary materials can be used in road construction. Both traditional and secondary materials used in roads may contain contaminants that may leach and pollute the groundwater. The goal of this research was to further the understanding of leaching and transport of …
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Modelling of the liquid slag behaviour in the continuous casting mould
… region, including the transient behaviour of the steel/slag interface. The research was carried out in collaboration with ArcelorMittal Research (AMR), based in Maizieres-les-Metz in France. The industrial objective of the thesis was to understand the factors affecting the transient behaviour of …
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Enhancing Steel Cleanliness in Tundishes by applying Physical and Mathematical Modeling
The tundish, being the last vessel which stores steel in liquid state, provides the final opportunity to enhance its quality. Hence, it must be ensured that the tundish acts as a refiner rather than a contaminator. It has been noticed that reoxidation of liquid steel from ambient air aspiration …
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Mathematical modeling of the fluid flow, multicomponent slag-metal reactions and desulfurization efficiency in gas-stirred ladles
… to simulate the fluid flow, phase interfaces and slag-eye characteristics as well as the slag-metal reactions and desulfurization efficiency in the gas-stirred ladles. The volume of fluid (VOF) model, discrete phase model (DPM), and realizable k-ε model were applied to describe the …
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Reactivity of crystalline slag phases in cementitious systems
… Reactive industrial wastes such as blast furnace slag and fly ash have been the subject of much research and have been successfully implemented in blended cements as partial replacements for Portland cement. Other wastes, such as steel and copper slags, have been largely neglected due to their …
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Balancing asphalt mixes containing recycled materials for optimum field performance
… RAP and RAS, whereas these mixes also contain steel slag and crushed concrete. In order to evaluate these AC mixes, a thorough laboratory testing, including indirect tensile creep compliance and strength, Hamburg wheel tracking test, and the Illinois flexibility index test (I-FIT) was conducted …
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Experimental study of UHPC with high fire resistance and meso-scale modelling
… It was found the mixture containing steel slag and hybrid fibre, i.e. steel fibre and polypropylene (PP) fibre, had excellent fire resistance. After being subjected to 1000 °C, this mixture retained a residual compressive strength of 112.8 MPa or a relative value of 69%. Furthermore, …
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Improving the performance of cold bituminous emulsion mixtures (CBEMs) : incorporating waste
… (PFA), red porphyry sand, synthetic aggregates, steel slag, crumb rubber, and crushed glass. The aggregate gradations were designed using a modified Fuller's curve. The emulsion used in this investigation was a cationic bitumen emulsion with 60% and 62% binder content composed of 100 pen base …
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Thou shall not flow: assessing magnitudes and processes of dissolved reactive phosphorus (P) removal by P-sorbing materials
… revealed that certain PSM, specifically steel slag (SS), may be removing DRP differently than commonly assumed with Al contributing to DRP removal and also the Ca removal mechanism including adsorption and not strictly precipitation. This work reveals the importance of accounting for …
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Prefabricados ecológicos de mortero de yeso diseñados con escorias de acería
Las industrias siderúrgica y metalúrgica generan grandes cantidades de residuos en forma de escorias de diversa naturaleza procedentes de la fabricación del acero. Aunque se reaprovechan principalmente en la obtención de cemento y como relleno en la estabilización de suelos, aún hay grandes …