Corrosion mechanism of postmortem converters slag-blocking …
The post-service ZrO 2 sliding gate for converter slag-retaining was examined by XRD, SEM, EDS and X-CT to investigate its corrosion mechanism. The results show that m-ZrO 2 in the hot working layer transform into stable t-ZrO 2, and cracks and flaws are generated due to the accompanied volume contraction, leading to severe slag penetration.The CaO in the slag …
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Mechanical Properties and Durability of Concrete with …
crete sand was partially replaced by copper slag and the water absorption, corrosion of reinforcement, chloride per- meability and acid and sulphate resistance of the resulting
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LIMS Enterprises | copper slag | Batangas II, Mariveles, Bataan
Using copper slag in concrete offers additional environmental and technical advantages to various industries. Partially replacing fine aggregate with copper slag reduces the cost of concrete production. At 40% copper slag replacement, there's an approximately 6.67% increase in compressive strength compared to the sand after 28 days of curing.
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Influence of copper slag on corrosion behavior of horizontal steel …
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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Effect of Copper Slag as Partial Replacement of Fine
Leema Rose &Suganyaexamines the Performance of Copper Slag on Strength and Durability Properties as Partial Replacement of Fine Aggregate in Concrete. The main aim of this study …
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Corrosion of magnesia-chromite refractory by PbO-rich copper slags
In case of corrosion by slag Z2 (containing the greatest amount of CuO x: 42%) the dark-grey grains are visible inside the slag phase of high Cu content (Fig. 14 d), which indicates copper was present most likely in cuprite solid solution phase. Copper (II) oxide is stable in the air up to 1026 °C, while at a higher temperature it decomposes ...
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Durability properties of copper slag and fly ash based concrete for …
The optimum proportion of copper slag is found up to CS for all the strength and durability parameters in HSC. And also copper slag appears as the best alternative material to natural sand [11], [12], [13].The replacement of cement from 10% to 40% by Fly ash. 28 days target strength of the mix can be achieved with a replacement of 30% of fly ash for cement.
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Significant improvement of oxidation resistance and slag …
Consequently, a range of techniques have been developed to tackle the aforesaid issues. Although studies have shown that the addition of ternary carbides [35, 36] (TiAlC 2, Al 3 BC 3) and rare earth oxides [37] (La 2 O 3) can significantly improve the oxidation resistance and slag resistance of lining materials, the high cost of these additives hinders the long-term …
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Bond strength and corrosion behavior of rebar embedded in …
This paper aims to explore the mechanical strength, bond behavior, and corrosion resistance of hardened Copper Slag Concrete Composites (CSCC) as a step toward …
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Influence of copper slag on corrosion behavior of horizontal steel …
This study aims to examine the influence of quickly cooled granulated copper slag (QCS) and finely ground slowly cooled broken copper slag (SCS) as basalt aggregate and …
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Flexural behavior of RC beam using industrial copper slag as a
These material properties are altered by partially replacing copper slag for fine aggregate in the reinforced concrete beam. Copper slag contains significant amounts of silica and alumina, both of which are essential constituents for exhibiting pozzolanic properties. ... By reducing the steel corrosion, the service life of the structure is ...
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STRENGTH AND DURABILITY PROPERTIES OF COPPER …
proportions of copper slag replacement (0 to 50%) in the concrete. Strength & Durability properties such as Compressive Strength, Split Tensile Strength, Flexural Strength, Acid …
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Concrete Made with Partially Substitutions of Copper Slag (CPS …
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 of cement and natural …
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Partial Replacement of Copper Slag as Fine …
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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Performance of Copper Slag on Strength Properties as Partial
In this study is to determine the Mechanical properties of Self-Compacting Concrete by partially replacing GGBFS as cementatious material and Natural River Sand with Copper slag in different ...
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Replacement of Fine Aggregate with Copper Slag in Concrete
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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STRENGTH AND DURABILITY PROPERTIES OF COPPER …
3.1.4 Copper Slag Copper Slag with sp. gravity 3.47 and fineness modulus 3.3 was used. Bulk Density in loose state and compacted state was found to be 1898 kg/m 3 and 2024 kg/m respectively. The water absorption was 0.24%. As per the chemical analysis of Copper Slag, Silica content in Copper Slag was found to be 33.52%. 3.1.5 Test Specimens
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STUDIES ON PARTIAL REPLACEMENT OF FINE …
that, copper slag can partially replace the fine aggregate, there by contributing to reduce the impact of sand mining. As this concrete reduces the raw material usage and ill-effects on ... chloride induced corrosion of steel bars can be reduced by the incorporation of copper slag[7]. By replacing more than
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Corrosion mechanism of magnesia-chrome refractory bricks with …
The corrosion reaction of copper slag on magnesia-chrome refractory is shown in Fig. 9. The corrosion resistance process of the refractory samples to Fe t O-SiO 2-xCr 2 O 3 (x = 0–5 wt%) slag is as follows: Firstly, corrosion begins with the penetration of slag into magnesia-chrome refractory. The pores, cracks, and grain boundaries in the ...
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Assessment of Corrosion and Durability Characteristics of Copper …
The corrosion rate of slag admixed concrete is maximum for 60% replacement of copper slag of sand. The combination specimens also showed 10 times greater rate of corrosion than control …
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Effect of copper slag fine aggregate on corrosion processes and
The partial replacement of fine aggregate with copper slag (30 vol%) could enhance the resistance against chloride ingress, and the corrosion observed in copper slag …
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Evaluation of copper slag and stainless steel slag as …
Commonly used alkali activation precursors such as blast furnace slag and fly ash will soon become less available due to resource competition, and may cease to be produced in certain regions. This limitation in future supply is a main driving force for the investigation of alternative precursor sources, such as non-blast furnace slags and non-ferrous slags, to …
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(PDF) Evaluation of copper slag and stainless steel …
The current study investigates the incorporation of copper slag (CS) and stainless steel slag resulting from electric arc furnace operations (EAFSS) as partial replacements for ground granulated ...
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Slag corrosion of alumina-magnesia-carbon refractory bricks by
AMC refractories are widely used as a lining for the metal line and the bottom of steelmaking ladles [1]; although the contact with the liquid slag is not continuous, contact does occur in certain steps of the process.The attack by molten slag was verified by the authors in a post-mortem study of AMC material [2].In that reported work, the contribution of the corrosion …
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Assessment of Corrosion and Durability Characteristics of Copper Slag
Since copper slag contains more than 50% of ferrous content, it is necessary to find corrosion properties of copper slag admixed concrete. To do so, the weighed TMT steel specimens were embedded in concrete cylinder of size 150mm diameter and 300 mm height. The concrete samples were subjected to alternate wetting and drying exposure in 3.5% ...
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Carbothermic Smelting Reduction of Copper Slag for Fe and Cu …
Copper is one of the most commonly used metals in the world (~ 26 million tonnes each year). 1 Over 85% of copper is produced by a pyrometallurgical process from copper ores or scrap. Copper slag, as a primary by-product, is also produced during the high-temperature smelting process. 2 The slag output is about 2 ~ 3 times that of the refined copper due to the …
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corrosion of partially copper slag in pdf in Mexico
— 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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Bond strength and corrosion behavior of rebar embedded in copper slag
Influence of copper slag on corrosion behavior of horizontal steel bars in reinforced concrete column specimen due to Chloride-induced corrosion ... the ash was used to partially replace cement at ...
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The potential of copper slag as a precursor for partially …
The safe and efficient treatment of copper slag (CS) is an important aspect of the circular economy and green development. In order to reduce the negative environmental impact, CS is used as a precursor to substitute different contents of ground granulated blast furnace slag (GGBS) in the manufacturing of alkali-activated materials (AAM)) in this study.
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The Behaviour of Concrete by Partial Replacement of Fine …
Brinda. 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 and the tests were ... To find the Volume proportions of the concrete mixes by partially replacing Sand with Copper slag and cement GGBS in one phase.
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