The corrosion resistance of the specimens decreases slightly with the Cr2O3 content due to the increased apparent porosity, which would result in penetration of more corrosive slag at the initial ...
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The fine aggregate is replaced with copper slag in proportions of 0%, 20%, 30%, 40%, 50%, 60%, 80%, and . Tests were performed for properties of fresh concrete and hardened concrete.
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This paper reports some experimental studies on the effect of copper slag partially replacing sand on concrete performance. In this paper, an experimental work was carried out to investigate the effect of copper slag as a fine ... accelerated corrosion properties of the concrete produced by replacing sand by copper slag. Srinivasu, Usha ...
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The metallurgical industry produces a large amount of solid waste [1].It is estimated that for every ton of copper produced, more than 2.2–3 tons of copper slag are produced [2].In the aluminum electrolysis and recovery process, about 30∼50 kg and 100–150 kg of SAD are respectively discharged per ton of aluminum [3].According to the World Bureau of Metal …
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Copper slag escalate the strength of mortar and concrete and it has the potential replace about 40-50% of natural fine aggregates[6]. Chloride ingress and chloride induced corrosion of steel …
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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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By accessing the real time corrosion resistance of steel inside the concrete, an increase in potential and decrease in corrosion rate was observed for ground granulated blast furnace slag based ...
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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 corrosion of magnesia–chrome (MgO–Cr2O3) brick in molten MgO–Al2O3–SiO2–CaO–FetO slag has been characterized using a dynamic rotary slag corrosion testing for various test cycles ...
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Flexural strength improved with the addition of 40% copper slag; however, as copper slag concentration was elevated further, flexural strength declined. Additionally, when 1% nanosilica was added to combinations containing copper slag, the filling of holes and capillary channels, the enhancement of the concrete's mechanical and durability ...
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Keywords: ferroalloys production, slag, refractories, corrosion, slag attack Abstract Refractory linings in pyrometallurgical furnaces are attacked by various process phases (e.g. metal, slag, gas). However, refractories are the barrier between these phases and the environment: refractory damages and consequent furnace failure can cause severe ...
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The 40 % copper slag replacement shows a higher compressive strength and tensile strength at 28 days and 56 days for (C25/30) and (C30/37) mixes [12].The combination of fly ash, copper slag, and ...
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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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— 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 partially dry …
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Copper slag must have a sufficient quantity of lime to reach the required rate of hydration and to achieve the required early age strength. Therefore, in this case, in order to increase its Pozzolanic reaction, hydrated lime was added up to 2.0% to the weight of cement. Copper slag has high concentrations of SiO2 and Fe2O3 compared with OPC.
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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
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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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ABSTRACT: In this research work Copper slag is partially used as fine aggregate to produce concrete. Sustainability and resource efficiency are becoming increasing important issues. …
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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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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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2.1.1. Physical Properties of CS . As shown in Figure 1 a, the CS used for the test is converter slag from Chifeng Fubang (for China) Copper Co., Ltd., Inner Mongolia, China, which is a kind of tailing slag made by crushing converter copper slag to form copper slag fragments with a size less than 200 mm. The ingredients are poured into an intermediate frequency furnace …
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An experiment was conducted to investigate the strength and durability properties of concrete having copper slag as a partial replacement of sand (fine aggregate) and results have been …
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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 partially dry concrete ...
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The cement has been replaced by Copper slag accordingly in the range of 0% (without Copper slag), 5%, 10%, 15%, and 20% is one phase and sand has been replaced by Copper slag accordingly in the range of 0% (without Copper slag), 10%, 20%, 30%, 40% and 50% is second phase by weight of cement for M25 mix.
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D et al [4] investigated on various corrosion and durability tests on concrete containing copper slag as partial replacement of sand and cement. In this paper, M20 grade concrete was used …
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It indicates that, the initial corrosion rate of concrete and copper slag admixed specimens are high and after 15 days the corrosion rate was very low. Since copper slag concrete exhibits good durability characteristics, it can be used as an alternate to fine aggregate and also be utilized in cement as a raw material for making blended cements. 6.
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Copper slag is produced about 400.000 tons per year in Indonesia by Freeport Company and Newmont Company according to Ministry of Energy and Mineral Resources Republic Indonesia data in 2012, while two million tons of copper slag produced in Japan per year through copper refining in Shikoku [2], [3].
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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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⚫ To find the optimum percentage replacement of sand by copper slag as fine aggregate. ⚫ To find the properties of concrete like compressive strength, split tensile strength and workability …
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In order to explore the corrosion mechanism of Al2O3–C refractories in the mold flux bearing MnO, the immersion test of Al2O3–C refractories in CaO–SiO2–CaF2–MnO slag with different MnO ...
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