Durability assessment of self compacting concrete incorporating copper slag as fine aggregates

Sharma, Rahul; Khan, Rizwan A.

doi:10.1016/j.conbuildmat.2017.08.074

Cited by 105 publications

(28 citation statements)

References 37 publications

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“…According to [60] (which cites data from a 2015 study by the International Copper Study Group), the global generation of CS by the copper industry was, at the time of the study, of around 68 million tonnes (being that China producers accounted for roughly one-third of the total).This waste is mainly constituted of iron and silicon oxides, and can exhibit pozzolanic behavior. It also typically possesses a Fe 2 O 3 +SiO 2 +Al 2 O 3 content of over 70% [60,61] which, according to ASTMC618, is the minimum required by for a class F fly ash classification. The mentioned studies also agree that CS possesses high specific gravity and low water absorption, when compared to the fine natural sand used in the respective studies.…”

Section: Non-ferrous Metallurgy 441 Copper Slagmentioning

confidence: 99%

Advantages and shortcomings of the utilization of recycled wastes as aggregates in structural concretes

Miraldo

Lopes

Pacheco-Torgal

et al. 2021

Construction and Building Materials

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h i g h l i g h t sComprehensive, systematic review on current state of the art concerning the utilization of a wide array of wastes as aggregates, in ordinary Portland cement concrete compositions, for structural applications. Analysis of the advantages and shortcomings for each recycling material in the context of the adoption of circular patterns in the construction sector life cycle. Evaluation of alkali-activated binders as an alternative for overcoming important shortcomings of Portland cement-based structural concretes.

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Section: Non-ferrous Metallurgy 441 Copper Slagmentioning

confidence: 99%

Advantages and shortcomings of the utilization of recycled wastes as aggregates in structural concretes

Miraldo

Lopes

Pacheco-Torgal

et al. 2021

Construction and Building Materials

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“…Ordinary Portland Cement (OPC, 53 grade) conforming to BIS 12269-2013 39 purchased from Ultra Tech Cement Ltd, Jalandhar (Punjab), India has been used in the present study.…”

Section: Materials and Properties Cementmentioning

confidence: 99%

Effect of Copper Slag as a Fine Aggregate on the Durability Characteristics of High-Performance Concrete (HPC) Containing Silica Fume

Singh

Khan

2020

JoARCEE

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This paper investigates the fresh and durability properties of the high-performance concrete by replacing cement with 15% Silica fume and simultaneously replacing fine aggregates with 25%, 50%, 75% and 100% copper slag at w/b ratio of 0.23. Five mixes were analysed and compared with the standard concrete mix. Fresh properties show an increase in the slump with the increase in the quantity of copper slag to the mix. Sorptivity, chloride penetration, UPV and carbonation results were very encouraging at 50% copper slag replacement levels. Microstructure analysis of these mixes shows the emergence of C-S-H gel for nearly all mixes indicating densification of the interfacial transition zone of the concrete.

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“…Literature has already shown that the Cu slag could qualify as a promising candidate for a fine aggregate in both mortar and concrete [10][11][12][13][14][15]. In work performed by Al-Jabri et al, the workability and compressive strength of high-performance concrete (w/c = 0.35) was investigated using Cu slag as fine aggregate [16].…”

Section: Introductionmentioning

confidence: 99%

“…In work conducted by Sharma et al, the durability of self-compacting concrete (SCC) containing Cu slag as fine aggregate with a replacement level of 0%, 20%, 40%, 60%, 80%, and 100% at a constant w/c ratio of 0.45 was studied [15]. The investigation suggested that 60% of Cu slag replacement was an ideal level of replacement for enhanced or comparable durability behavior to SCC possessing conventional aggregate.…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study on the Use of Modified Copper Slag as a Sustainable Fine Aggregate in Mortar

Sivakumar¹,

ruyaert²,

Belie³

et al. 2021

RPM

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Depending on the availability of aggregate sources pertaining to their geographic locations, the concrete industry utilizes conventional aggregates such as marine sand, dredged gravel, or crushed rocks. This method requires high energy and high processing costs for washing and grinding. The objective of this work is to use Modified Ferro silicate slag (MFS), a by-product obtained from the copper industry, as an alternative to the conventional fine aggregates found in mortar. No additional processing such as washing or grinding is required. By using the MFS slag as an aggregate in mortar or concrete, the factors of sustainability and a circular economy are enhanced. The current study focuses on the characterization of the MFS slag, including the mortar mixes with the MFS slag as a fine aggregate, and shows that the MFS slag can be a promising raw material to replace conventional aggregates in mortar. The leaching of its heavy elements such as Sb, As, Cr, Mo, Pb, and Zn was conducted well within limits (VLAREMA 4). The SEM and MIP analyses indicated that the porosity of the MFS slag mortar was higher compared to the standard aggregate mortar. Moreover, the MFS slag mortar showed acceptable resistance toward the alkali-silica reaction and carbonation.

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Durability assessment of self compacting concrete incorporating copper slag as fine aggregates

Cited by 105 publications

References 37 publications

Advantages and shortcomings of the utilization of recycled wastes as aggregates in structural concretes

Advantages and shortcomings of the utilization of recycled wastes as aggregates in structural concretes

Effect of Copper Slag as a Fine Aggregate on the Durability Characteristics of High-Performance Concrete (HPC) Containing Silica Fume

Feasibility Study on the Use of Modified Copper Slag as a Sustainable Fine Aggregate in Mortar

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