The penetration and corrosion resistance to copper and anode slag of six magnesia–chromite and six chrome-free refractory brick types were tested using static finger tests at a typical copper ...
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There is almost 6.67% increase in compressive strength of concrete compared to control mixture (i.e. sand) at 40% copper slag replacement at 28 days of cuirng.Mixture containing 50% copper slag gave higher split tensile strength of concrete, almost 19.3% increase compared to control mixture at 28 days of curing.For cement mortars, all ...
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Copper slag fine aggregate (CUS) leads to a reduction of oxygen permeability.. CUS leads to the smaller microcell corrosion current density. • The resistance against chloride ingress of CUS was comparable to OPC.. CUS affects the potential differences that contribute to macrocell corrosion formation.. CUS …
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Download full-text PDF Read full-text. ... D., Baskaran, T. and Nagan, S. (2010). "Assessment of Corrosion and Durability ... Copper slag is generated when copper and nickel ores are recovered ...
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In order to study the influence of freeze–thaw cycles on chloride ion corrosion resistance of RPC with copper slag (CS) instead of quartz sand (QS), the 28d uniaxial compressive strength (UCS ...
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DOI: 10.1016/j.ceramint.2022.05.170 Corpus ID: 248911037; Effects of La2O3 on the viscosity of copper smelting slag and corrosion resistance of magnesia refractory bricks @article{Hou2022EffectsOL, title={Effects of La2O3 on the viscosity of copper smelting slag and corrosion resistance of magnesia refractory bricks}, author={Xing Hou and …
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As shown in Fig. 2, adding copper slag to concrete mixtures makes the concrete easier to work with. This improvement in workability is the result of copper slag's low water absorption characteristics. Download: Download high-res image (152KB) Download: Download full-size image; Fig. 4a. Slump value of different copper slag M 20 …
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T.Venkataraman. (Department of Civil Engineering, Government College of Engineering, Bodinayakkanur, Tamilnadu, India) ABSTRACT: In this research work Copper slag is …
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Copper slag has been substituted for fine aggregate in various quantities ranging from 10% to 50% in the concrete compositions. In total, six concrete mix proportions have been produced, for which the parameters like water absorption and chloride permeability were evaluated. ... The effect of copper slag on strength and …
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The rotating method is carried out to investigate the effects of La 2 O 3 content (0–4 wt%) on the viscosity of copper smelting slag at high temperatures, the apparent activation energy is evaluated according to the Arrhenius equation and the structural characterization of this quenched slag is characterized by Raman …
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Copper slag (CS) is an industrial by-product obtained through the manufacture of copper metal, which is produced in large quantities every year. Natural aggregates are becoming more scarce and their production and consignment is becoming hard day by
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DOI: 10.1016/j.conbuildmat.2020.121909 Corpus ID: 230556841; Effect of copper slag fine aggregate on corrosion processes and behavior in reinforced concrete prism specimen @article{Sandra2021EffectOC, title={Effect of copper slag fine aggregate on corrosion processes and behavior in reinforced concrete prism specimen}, …
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The rotating method is carried out to investigate the effects of La 2 O 3 content (0–4 wt%) on the viscosity of copper smelting slag at high temperatures, the apparent activation energy is evaluated according to the Arrhenius equation and the structural characterization of this quenched slag is characterized by Raman …
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View PDF; Download full issue; Search ScienceDirect. Construction and Building Materials. Volume 271, 15 February 2021, 121909. Effect of copper slag fine aggregate on corrosion processes and behavior in reinforced concrete prism specimen. ... and migration. In the wetting stage of cyclic wetting and drying, dry or …
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The copper slag admixed GPC increased workability without sacing alkalinity dosage by lowering free water demand by 28% compared to control samples. 2. In ternary blends, the partially replaced fine aggregate with 40% copper slag was used with 13%. While M-sand as fine aggregate required 14% more water for ternary blended and …
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It was found that concrete with cop-per slag had a lower chloride permeability (that the authors linked to a decreased porosity of the concrete). However a slightly lower acid …
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maximum for the mix containing 30% of copper slag as fine aggregates. The concrete with 45% of copper slag would exhibit better durability over mix containing 30% of copper slag. Fig 4: Sorptivity of trial mixes 5. CONCLUSIONS 1. Copper slag is smooth and shiny. Hence, workability enhances with increased replacement levels. 2.
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The review encompasses an overview of the design of copper slag mixes, a brief analysis of its utilisation in concrete, and an examination of the key factors that …
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For each ton of copper metal produced worldwide, about 2.2–3.0 tons of slag is produced, estimated to be approximately 40 million tons of slag generation annually (J. P. Wang & Erdenebold, 2020), with the content of iron reaching 45%; the copper slag has potential to produce approximately 26.8 million tons of Fe annually (Heo et al., 2013). A ...
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2.1.4 Copper slag Copper slag is a by-item material created from the way toward assembling copper. As the copper settles down in the smelter, it has a higher thickness, pollutions stay in the top layer and after that are …
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During high-temperature process, the oxide components of the slag form low melting phases as a result of chemical reactions, e.g., fayalite Fe 2 [SiO 4] (T M = 1205 °C) [8,9], cuprite Cu 2 O (T M = 1215 °C) [], magnetite Fe 3 O 4 (T M = 1539 °C) [], and lead silicate Pb 2 SiO 4 (T M = 747 °C) [].Therefore, since the 1950s, the most suitable …
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A series of tests were performed to assess the influence of copper slag fine aggregates (CUS) on the corrosion behavior of horizontal steel bars in reinforced …
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granulated copper slag, which is the waste material produced in the extraction process of copper metal, as a replacement to sand in concrete mixes is explored. Here the copper slag is replaced for fine aggregate in different proportions as 40%, 60% and 80%. The effect of replacing fine aggregate by copper slag on the
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Copper slag has been carbothermally smelted in a submerged electric arc furnace, partially reducing FeO to a metallic phase comprising of copper and other metals by Acma et al. ... The studies have been performed for the machining of corrosion-resisting 1H18N9T steel, 55 plain carbon steel in the heat-treated condition, and 59 lead brass. ...
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The aim of this study is to investigate the effects of CUS on the ingress of corrosive substances, including chloride ions and water, including dissolved oxygen …
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Copper slag is a by-product of copper production that contains valuable metals and can be used for various applications. This paper reviews the physical …
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DOI: 10.1016/j.jclepro.2023.140283 Corpus ID: 266526178; The potential of copper slag as a precursor for partially substituting blast furnace slag to prepare alkali-activated materials
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2.1.4 Copper slag: Copper slag is an industrial by-product material produced from the process of manufacturing copper. Copper slag used in this work was brought from Sterlite Industries Ltd (SIL), Kolkata, India. 2.1.5 Ground Granulated Blast furnace Slag: GGBS is a waste industrial by-product from the blast furnaces used to make iron.
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The adhesion of Na2CO3 slag to the surface of refractories in an alkali recovery furnace can cause corrosion and spall. Magnesia refractories can be used as linings in alkali recovery furnaces ...
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3.3. Physical properties. The typical copper slag is generally black or dark brown in colour and its density is in the range of 3.2 – 4.5 g/cm 3, mainly depending on the content of Fe (Sarfo et al., 2017b).The average true density of copper slag is approximately 3.8 g/cm 3, which is denser than the ordinary natural aggregates (Shi et …
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