Incorporation of copper slag in cement brick production as a radiation shielding material

Sim, Sungwon; Jeon, Dongho; Kim, Do Hoon; Yum, Woo Sung; Yoon, Seyoon; Oh, Jae Eun

doi:10.1016/j.apradiso.2021.109851

Cited by 19 publications

(3 citation statements)

References 38 publications

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“…According to the results, the incorporation of copper slag significantly improved the mortar's flowability and strength. The gamma-ray attenuation of silica was dramatically reduced when copper slag was used as an aggregate [21].The purpose of Ulla Khan, A et al's study was to investigate the SCC core and steel tube behavior at elevated temperatures from 100 • C to 800 • C for each tested material. Experiments were conducted on laminated steel plates filled with different types of SCC (M25, M30, and M40) under pressure and high temperature.…”

Section: Introductionmentioning

confidence: 99%

Microstructural and Residual Properties of Self-Compacting Concrete Containing Waste Copper Slag as Fine Aggregate Exposed to Ambient and Elevated Temperatures

Chaitanya,

Sivakumar,

Madhavi

et al. 2024

Infrastructures

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In recent times, with rapid development in the construction sector, the use of enormous amounts of materials is required for the production of concrete. Fire penetrates concrete, leading to chemical contamination, small cracks, and lightening. These effects can significantly change the properties of concrete’s structure, reduce its strength and durability, and also change the behavior of the structure and lead to effects on the environment. An attempt was made to study the effects of elevated temperature on the mechanical characteristics of self-compacting concrete (SCC) with by-products including fly ash as a partial replacement for cement and waste copper slag as a partial replacement for fine aggregate at 0%, 10%, 20%, 30%, 40%, 50%, 60%, and 70%. The SCC specimens were subjected to elevated temperatures ranging from 200, 400, 600, and 800 °C, respectively, for a steady-state of two hours in a digital muffle furnace. The residual compressive strength, mass loss, ultrasonic pulse velocity, and residual density along with a visual inspection of cracks and color changes were observed. In this study, with over 400 °C temperatures, surface fractures appeared. The residual compressive strength (R-CMS) of all the individual temperatures of the SCC-WCS% mixes exhibited a gain in strength range from 31 to 34 MPa at 400 °C, 26 to 35 MPa at 600 °C, and 22.5 MPa to 33.5 MPa at 800 °C, respectively. Microstructural analysis of SCC-WCS% mixtures subjected to elevated ambient temperatures is carried out with a scanning electron microscope (SEM) and X-ray diffraction (XRD).

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Section: Introductionmentioning

confidence: 99%

Microstructural and Residual Properties of Self-Compacting Concrete Containing Waste Copper Slag as Fine Aggregate Exposed to Ambient and Elevated Temperatures

Chaitanya,

Sivakumar,

Madhavi

et al. 2024

Infrastructures

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“…In addition to valuable metal recovery, direct resourceful utilization is regarded as a more promising method to dispose copper slag which overcomes extra energy consumption and possible secondary pollution. Therefore, many literatures made effort to provide solutions for producing construction materials, [19][20][21][22][23][24] glass ceramics [25][26][27] reinforced composites, 28 and catalyst. 29,30 Among these investigations, the construction materials attract more attentions due to the enormous consumption in architectural engineering for infrastructure.…”

Section: Introductionmentioning

confidence: 99%

“…The prepared ultra-high strength concrete presented a higher compressive strength above 200 MPa with 100% treated copper slag. In addition, Sim et al 22 found that cement mortar bricks with addition of copper slag significantly improved gamma ray attenuation performance due to added iron component. In addition, copper slag is also proposed to utilize in widely used asphalt mixtures pavements for sustainable road infrastructure.…”

Section: Introductionmentioning

confidence: 99%

Utilization of copper slag in the fabrication of silica refractory: Characteristics and performance evaluation

Lv,

Gu,

Zhang

et al. 2023

Int J Applied Ceramic Tech

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It is urgently necessary for environmental resource utilization of copper slag with incremental quantities of stacked copper slag. In this paper, copper slag has been used as mineralizer and raw material to prepare silica refractory. The effect of copper slag on phase composition, microstructure, mechanical and load deformation performance has been investigated. The results indicate that the components of copper slag as mineralizer promote the formation of tridymite. Simultaneously, copper slag promotes the densification of silica refractory and glass phase increases due to the mineralizer and impurities in copper slag. The increased glass phase promotes the cold crushing strength and cold modulus of rupture for silica refractory. While the hot modulus of rupture slightly decreases by 1.5 MPa with 6 wt% copper slag. The load softening temperature and high‐temperature creep attains 1632.6°C and ‐5.5%, respectively. It is estimated that the potential application of silica refractory with copper slag on upper part of copper stove (low‐temperature and low‐load region) is acceptable in consideration of environmental utilization of solid waste.This article is protected by copyright. All rights reserved

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Slide Gate Technology for Slag Tapping

Vukovic

2022

Furnace Tapping 2022

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Incorporation of copper slag in cement brick production as a radiation shielding material

Cited by 19 publications

References 38 publications

Microstructural and Residual Properties of Self-Compacting Concrete Containing Waste Copper Slag as Fine Aggregate Exposed to Ambient and Elevated Temperatures

Microstructural and Residual Properties of Self-Compacting Concrete Containing Waste Copper Slag as Fine Aggregate Exposed to Ambient and Elevated Temperatures

Utilization of copper slag in the fabrication of silica refractory: Characteristics and performance evaluation

Slide Gate Technology for Slag Tapping

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