— The current paper examines the laboratory testing of various concrete mixes (Mix 20, Mix 40, and Mix 60) containing copper slag waste as a partial replacement for …
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— MgAl 2 O 4 spinel in Cu smelting slag was simulated using FactSage Version 6.2 and the Fact53 and FToxid databases (Thermfact/CRCT, Montreal, Canada), based on the chemical compositions of the MgAl 2 O 4 spinel and Cu smelting slag. A typical corrosion model [20] was established (Fig. 2), with m(M)/m(M + S) = A defined as …
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— Copper slag (CPS) is a large amount of waste material produced during the manufacture of copper. The disposal of this waste material becomes a problem for environmental concerns. Therefore, it is necessary to explore feasible alternate disposal options. They may also be utilized in concrete manufacturing to cut down on the usage …
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— Request PDF | Corrosion mechanism of magnesia-chrome refractory bricks with FetO-SiO2-Cr2O3 copper converter slag | The paper investigates the effect of Cr2O3 on the resistance of magnesia-chrome ...
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— Download full-text PDF Read full-text. ... optimal process parameters in corrosion. inhibition of austenitic stainless steel (Type ... Fine aggregate were partially replaced with copper slag at ...
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— Copper slag is an abrasive blasting grit (by-product) made of granulated slag from metal smelting process and refining of copper in which sulphur dioxide is released. …
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The penetration of copper‐smelting slag into refractories is a major challenge to the research of chromium‐free refractories for copper‐smelting furnace. In this paper, Y2O3 was added to regulate the pore structure of periclase refractories, which enhanced their various properties, especially corrosion resistance to copper converter slag. The results showed …
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— 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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— Concrete made with w / c 0.55 possess high flowability (100–175 mm) to have a maximum slump value of 175 mm, and therefore higher workable concrete. …
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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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— 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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copper, molten slag containing iron oxides plus gangue and flux oxides, and offgas. The slag typically contains as much as two percent copper. This slag can be recycled to the flash furnace, or its copper content can be recovered in a slag cleaning furnace, often electric. The flash furnace
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Fayalite is the main phase of copper slag and a type of Fe silicate glass that is composed of a polymerized network of silicate tetrahedrons, in which SiO 2 and FeO are generally considered as network formers and modifiers, respectively. The structure of fayalite is shown in Fig. 13 [107].In iron silicate glass, O 2− exists in the form of bridging and non …
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— Copper slag (CPS) is a large amount of waste material produced during the manufacture of copper. The disposal of this waste material becomes a problem for environmental concerns. ... Concrete Made with Partially Substitutions of Copper Slag (CPS): A State Art of Review Materials (Basel). 2022 Jul 27;15(15):5196. doi: …
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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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— The control concrete specimens in this study were prepared using ordinary Portland cement (OPC) of 43-grade, adhering to IS 8112 [70], equivalent to Type-I Portland cement according to ASTM C150/C150M [71].The natural river sand (NS), meeting the criteria of Specification E11 of ASTM C33/C33M [72], and natural coarse aggregates of …
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— 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-refining temperature (1300. °C).. The microstructures of the as-delivered and tested refractory types were investigated by means of electron-probe …
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— In the realm of civil construction, river sand is an essential ingredient that cannot be overlooked. With the ever-increasing surge in construction activities, the demand for river sand has surged in tandem, resulting in its escalating scarcity, and subsequently, its price surge across the entire nation. This study delves into the utilization of copper …
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— View PDF; Download full issue; Search ScienceDirect. Construction and Building Materials. Volume 255, 20 September 2020, 119265. Influence of copper slag on corrosion behavior of horizontal steel bars in reinforced concrete column specimen due to chloride-induced corrosion ... Copper slag on the hydration of up to 15% cement-based …
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— Pitting corrosion in seawater is one of the most difficult forms of corrosion to identify and control. A workhorse material for marine applications, 316L stainless steel (316L SS) is known to ...
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— Later in the chapter corrosion of carbon steel weldments that are more often called preferential weldment corrosion would be discussed. The primary reasons for this type of corrosion are carefully elaborated on whether it's induced by galvanic corrosion or it's related to the composition and microstructure differences associated with the heat …
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Archaeological fieldwork and archaeometallurgical analysis have identified a Late Postclassic regional centre of copper production in western Mexico. The total output …
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The corrosion resistances of different refractory materials to the slag and changes of the morphologies after the high temperature experiments were analysed and compared. The present studies will lead to the development and applications of Cr-free refractories in copper industry and reduce the potential hazards to the environment and cost of ...
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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 Donghai …
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— Steel slag, copper slag, lead-zinc slag, and electric furnace ferronickel slag are the most common metallurgical slags that could be used as supplementary cementitious materials (SCMs) and aggregates.
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— A study concluded that the inclusion of slag (30–50%) increased the workability of concrete mixes; although a higher slag concentration led to larger improvements . Higher slag fineness had no discernible impact on workability, and the authors of found that the workability of mortar decreased as GGBS surface area increased.
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— The as-prepared CNT f-MgO exhibited a slag contact angle of 147° at a temperature high up to 1723 K, indicating a superior nonwetting behavior over these of original MgO castable (19°) and pure graphite (133°).. CNT f-MgO showed a 65 times reduction of slag corrosion depth compared to the original MgO and commercial MgO-5 …
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of the concrete with copper slag is lower than the control (no copper slag) mixes [1726–, 2031, ]. Very few papers assessed workability of the copper-slag concrete. Gener-ally it was found that copper slag may increase workabil-ity of concrete mixes (e.g. [1731–]) but most of these 20, papers used superplasticizers to enhance workability of
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— Construction and Building Materials. Effect of copper slag fine aggregate on corrosion processes and behavior in reinforced concrete prism specimen. Copper slag …
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— A rapid chloride ion migration test and potential corrosion analysis showed that copper slag aggregate concrete's initial density and corrosion resistance were higher than those of natural ...
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