Use of copper slag in cement mortar

Nazer, Amin; Pavez, Osvaldo; Rojas, Freddy

doi:10.1590/s0370-44672012000100012

Cited by 17 publications

(17 citation statements)

References 9 publications

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“…Chemical and mineralogical analyses indicated 0,58% copper and 0,55% sulfur; high amounts of iron (33,3%) and silica (17,7%); substantial amounts of calcium oxide (5,50%) and alumina (3,95%); and minor amounts of sodium, potassium, and magnesium oxides. These values are consistent with the chemical composition of ancient and recent CS from Atacama (Cardona, Coursol, Vargas, and Parra, 2011;Nazer et al, 2010;Pavez, Nazer, Rivera, Salinas, and Araya, 2019).…”

Section: Characterization Of Copper Slagsupporting

confidence: 86%

“…The CS samples showed a density of 3,30 g/cm 3 , similar to what was reported by Valderrama, Gonzalez, Santander and Zazzali, (2018) for reverberatory furnace slag from the same smelter (HVL). Nazer, Pavez, Rojas, and Aguilar (2010) reported a density of 3,817 g/cm 3 for samples obtained from the same deposit as the present study. Velásquez (2018) reported a density of 3,92 for slags from Potrerillos smelter (Atacama, Chile), while Cendoya (2009) reported a density of 4,0 g/cm 3 for another Chilean copper smelter slag.…”

Section: Characterization Of Copper Slagsupporting

confidence: 75%

“…The Bond index was 22,6 kWh/t. This value is higher than normal copper ores, which normally present a Bond Index between 13,0 and 20,0 kWh/t (Nazer et al, 2010;Cendoya, 2009;Valderrama et al, 2018). In mineral comminution, material abrasiveness, pulp environment and particle size, are the most important factors influencing the wear of the linings and grinding media in ball milling.…”

Section: Characterization Of Copper Slagmentioning

confidence: 90%

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Copper Recovery Through Smelter Slag Flotation in Atacama, Chile: An Industrial Case Study

et al. 2021

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Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. This study consisted of the physical, chemical, and mineralogical characterization of the copper slag, along with preliminary flotation tests. This article focuses on industrial flotation, which consisted of two oneyear campaigns (2016 and 2017). The first campaign was carried out using an existing copper slag flotation circuit in the plant. During the second campaign (2017), a circuit for sulfide ore flotation with an additional columnar flotation cleaning stage was evaluated. Results showed an improvement in metallurgical parameters on the second campaign (including improvements in processing capacity, concentrate copper grade, and metallurgical recovery). From the industrial copper slag flotation campaigns, it was concluded that it is possible to obtain a commercialquality copper concentrate, suitable for further processing in a copper smelter. This mitigates certain environmental impacts of copper processing.

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Section: Characterization Of Copper Slagsupporting

confidence: 86%

Section: Characterization Of Copper Slagsupporting

confidence: 75%

Section: Characterization Of Copper Slagmentioning

confidence: 90%

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Copper Recovery Through Smelter Slag Flotation in Atacama, Chile: An Industrial Case Study

et al. 2021

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“…Very encouraging results on the use of copper slag in mortars were reported by Nazer et al (2012), when working with regular pozzolana cement, at the same ages (3, 7 and 28 days), but with raw grading copper slag samples, i.e. not adjusted to grading distributions stated in the NCh 163.Of1979 (INN 1979) Chilean standard.…”

Section: Discussionmentioning

confidence: 91%

Effect of type cement on the mechanical strength of copper slag mortars

Nazer

Pavez

Toledo

2013

Rem: Rev. Esc. Minas

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ResumoA escória de cobre é um resíduo metalúrgico massivo e reconhecido como um passivo ambiental. A geração anual de escória de cobre é de 24,6 milhões de toneladas, aproximadamente, e os principais impactos ambientais, derivados da disposição da escória, é o uso de grandes extensões de solo e a contaminação visual da paisagem. Nas últimas décadas, as escórias de cobre têm sido utilizadas na fabricação de concretos e argamassas de cimento. Nesse estudo, com o objetivo de verificar a influência do tipo de ligante na dureza final de argamassas, foram utilizados dois tipos de cimento: cimento normal e cimento de alta resistência. A escória de cobre foi caracterizada por análise química, mineralógica e granulométrica. Regras chilenas de construção foram utilizadas na metodologia aplicada para a determinação de alguns parâmetros importantes das escórias. Ensaios de resistência à compressão e flexão foram realizados em argamassas de cimento, em laboratórios especializados. Os resultados obtidos mostraram que as argamassas preparadas com escória de cobre e cimento normal apresentaram melhor resistência à compressão e flexão do que as argamassas preparadas com a areia normal, e os resultados obtidos com cimento de alta resistência inicial foram ainda melhores. Pode-se concluir, a partir desse trabalho, que a escória de cobre tem boas características mecânicas, para ser usada na fabricação de argamassas de cimento, constituindo-se em uma adequada alternativa para uso na indústria da construção. Palavras

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“…The use of CS in construction industry, either as partial or full substitute of cement or aggregate has been reported in the literature (Shi et al 2008). There are also studies about using CS in cement, mortar and concrete production as raw materials for clinker, cement replacement and coarse/fine aggregates (Tixier et al 1997;Ariño and Mobasher 1999;Moura et al 2007;Brindha and Nagan 2010;Nazer et al 2012;Singh et al 2014;Saxena 2015). Shi et al (2008) indicated that the use of CS provides environmental and economic benefits for all related industries, especially in areas where considerable amounts of CS are generated.…”

Section: Literature Reviewmentioning

confidence: 99%

Use of Copper Slag as Fine Aggregate and Partial Replacement of Cement

Pavez

Rivera

Toledo

et al. 2018

HOLOS

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The use of copper slag (CS) as fine aggregate and partial substitute of cement for mortar preparation was studied. Results showed an increase on compressive and flexural strength at 3, 7 and 28 days using CS as fine aggregate. As partial replacement of cement, a gradual improvement on compressive and flexural strength at 7, 28 and 90 days was noticed. At 7 and 28 days, the control mortar (CM) shows higher compressive strength and flexural strength. Nevertheless, at 90 days, the CM and mortars prepared with CS showed similar compression and flexural strength. The use of CS in the construction industry is hence presented as an auspicious alternative for improving the quality of mortars and mitigating the environmental impacts of slag deposits, adding extra value on this metallurgical waste and reducing the shortage of aggregates of northern Chile.

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Use of copper slag in cement mortar

Cited by 17 publications

References 9 publications

Copper Recovery Through Smelter Slag Flotation in Atacama, Chile: An Industrial Case Study

Copper Recovery Through Smelter Slag Flotation in Atacama, Chile: An Industrial Case Study

Effect of type cement on the mechanical strength of copper slag mortars

Use of Copper Slag as Fine Aggregate and Partial Replacement of Cement

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