Study on performance enhancement of self-compacting concrete incorporating waste foundry sand

Parashar, Anuj; Aggarwal, Paratibha; Saini, Babita; Aggarwal, Yogesh; Bishnoi, Shashank

doi:10.1016/j.conbuildmat.2020.118875

Cited by 44 publications

(15 citation statements)

References 26 publications

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“…Meanwhile, [58] confirms that, even when polycarboxylate ether superplasticizers are use, the workability of concretes containing SFS as fine aggregate decreases. Furthermore, compressive strength, dynamic elastic modulus, surface sorptivity and water permeability were all impacted by the waste addition.…”

Section: Recycled Granulated Steelmentioning

confidence: 57%

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: Recycled Granulated Steelmentioning

confidence: 57%

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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“…According to Santos, Dalla Valentina and Souza [ 36 ], exhaust powder has an irregular lamellar shape and in general, presents grains with sizes smaller than 180 µm. Already Parashar et al [ 66 ] revealed that WFS particles have irregular shape. Figure 4 b demonstrates the changes in the particles surface, that occur due to thermal shock that happens as a result of the powder contact with liquid metal during molding [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

“…In Souza [ 67 ], quartz, hematite, potassium oxide, aluminum oxide, sodium oxide and periclase were identified. Parashar et al [ 66 ] reported that WFS was mostly a crystalline material and presented quartz and albite as major phases.…”

Section: Resultsmentioning

confidence: 99%

Physical and Chemical Properties of Waste Foundry Exhaust Sand for Use in Self-Compacting Concrete

et al. 2021

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The reuse of waste in civil construction brings environmental and economic benefits. However, for these to be used in concrete, it is necessary a previous evaluation of their physical and chemical characteristics. Thus, this study aimed to characterize and analyze the waste foundry exhaust sand (WFES) for use in self-compacting concrete (SCC). Foundry exhaust sand originates from the manufacturing process of sand molds and during demolding of metal parts. It is a fine sand rich in silica in the form of quartz collected by baghouse filter. Characterization of WFES was conducted through laser granulometry, scanning electron microscopy (SEM) in the energy dispersive spectroscopy (EDS) mode, X-ray diffraction (XRD), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG) and derivative thermogravimetry (DTG) techniques. The waste was classified as non-hazardous and non-inert, with physical and chemical properties suitable for use in SCC composition, as fine aggregate or mineral addition. Five mixtures of SCC were developed, in order to determine the waste influence in both fresh and hardened concrete. The properties in the fresh state were reached. There was an increase in compressive strength and sulfate resistance, a decrease in water absorption of self-compacting concrete by incorporating WFES as 30% replacement.

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“…The splitting tensile strength of SCC concrete with 15% WFS content was significantly higher than the concrete without WFS [ 62 ]. In contrast, Parasha et al [ 58 ] concluded that the replacement of WFS decreased split tensile strength. According to Sowmya et al [ 50 ], the split tensile strength of concrete increased up to 20% substitution of WFS.…”

Section: Mechanical Propertiesmentioning

confidence: 96%

“…The results of this study in compression strength seem to be in line with the observations of many other research findings [ 56 , 57 ]. In contrast, Parasha et al [ 58 ] used WFS as a partial alternative for natural river sand in concrete in proportions of 0, 10, 20, 30, and 40%. Results indicate that concrete compressive strength is decreased when WFS is substituted.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Waste Foundry Sand in Concrete Production Instead of Natural River Sand: A Review

et al. 2022

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The by-product of the foundry industry is waste foundry sand (WFS). The use of WFS in building materials will safeguard the ecosystem and environmental assets while also durable construction. The use of industrial waste in concrete offsets a shortage of environmental sources, solves the waste dumping trouble and provides another method of protecting the environment. Several researchers have investigated the suitability of WFS in concrete production instead of natural river sand in the last few decades to discover a way out of the trouble of WFS in the foundry region and accomplish its recycling in concrete production. However, a lack of knowledge about the progress of WFS in concrete production is observed and compressive review is required. The current paper examines several properties, such as the physical and chemical composition of WFS, fresh properties, mechanical and durability performance of concrete with partially substituting WFS. The findings from various studies show that replacing WFS up to 30% enhanced the durability and mechanical strength of concrete to some extent, but at the same time reduced the workability of fresh concrete as the replacement level of WFS increased. In addition, this review recommended pozzolanic material or fibre reinforcement in combination with WFS for future research.

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Study on performance enhancement of self-compacting concrete incorporating waste foundry sand

Cited by 44 publications

References 26 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

Physical and Chemical Properties of Waste Foundry Exhaust Sand for Use in Self-Compacting Concrete

Waste Foundry Sand in Concrete Production Instead of Natural River Sand: A Review

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