Eco-concrete for sustainability: utilizing aluminium dross and iron slag as partial replacement materials

Javali, Shriraksha; Chandrashekar, A.; Naganna, Sujay Raghavendra; Manu, D. S.; Hiremath, Parameshwar; Preethi, H. G.; Kumar, Nitin

doi:10.1007/s10098-017-1419-9

Cited by 36 publications

(21 citation statements)

References 25 publications

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“…However, the high amount of Al slag generated worldwide requires searching for new methods of valorization. The published research is limited to the use of Al slag as an asphalt filler, 21 an adsorbent for the removal of Cd(II) or organic compounds such as Congo red dye from aqueous solution, 22–24 or in the manufacture of value‐added products such as refractories, 25 Sialon, 26 expanded clay aggregates, 21 cement and concrete, 27,28 geopolymers 29 and spinels 30 …”

Section: Introductionmentioning

confidence: 99%

Valorization of Al slag in the production of green ceramic tiles: Effect of experimental conditions on microstructure and crystalline phase composition

et al. 2020

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This work reports the results of an investigation aimed at the development of sintered glass-ceramic tiles by the sinter-crystallization of mixtures composed of aluminum slag and reclaimed packaging glass. The thermal behaviors of mixtures incorporating 50 and 60 wt% Al slag were established by differential thermal analysis (DTA). Green compacts were sintered in a temperature range of 800°C-1050°C and then soaked for 10-60 minutes. The mineralogical characterizations of the sintered materials were obtained by X-ray diffraction (XRD). The achieved results indicated that the sintering of aluminum slag and packaging glass reclaimed led to a glass-ceramic material composed mainly of needle-like crystals of wollastonite (CaSiO 3). The bloating of samples during firing was evaluated according to a Cougny predictive diagram. After initial observations and according to bending strength characterizations, sintered tiles prepared from aluminum slag and glassy sand are appropriate for floor pavement and wall covering.

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Section: Introductionmentioning

confidence: 99%

Valorization of Al slag in the production of green ceramic tiles: Effect of experimental conditions on microstructure and crystalline phase composition

et al. 2020

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“…In another work, Javali et al (2017) utilized aluminium dross and iron slag as partial replacement materials for cement and sand in concrete. Samples were produced in various proportions containing cement, aluminium dross, and iron slag.…”

Section: Aluminium Dross Waste Utilizationmentioning

confidence: 99%

Waste materials in highway applications: An overview on generation and utilization implications on sustainability

Bamigboye

Bassey

Olukanni

et al. 2021

Journal of Cleaner Production

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The rate at which the construction industry explores and consumes non-renewable natural aggregates and other industrial products such as bitumen, lime, and cement during construction and rehabilitation of road pavements has over time proven to be environmentally degrading and non-sustainable. This, alongside the issues of high solid waste generation and inadequate disposal, has led to series of studies by various researchers to find methods to integrate these solid wastes as alternative materials in road construction and maintenance. This paper provides a simple yet detailed review of recent relevant studies conducted to understand the alarming rate of generation and the effects of reusing these waste materials in both flexible and rigid pavements. The review further outlines the advantages and disadvantages of the selected waste materials and compare the results with that of conventional materials in accordance with relevant standards while highlighting the performance, and life cycle environmental and economic sustainability implications. The study shows that the adoption of these materials offers efficiency in waste disposal while reducing the demand for natural aggregates and consequently, significantly reducing life cycle impacts and costs. The challenges limiting the effective practical implementation of these waste recycling techniques in the construction industry were discussed and possible solutions were suggested to encourage and ensure its utilization in road construction.

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“…Eco-friendly Concrete is a latest terminology given to the variety of concrete produced by incorporating waste/discarded and recycled materials [1,2]. Globally, several researchers have manufactured eco-friendly concrete using a wide-range of waste, recycled and composite materials [3][4][5][6]. The benefit of eco-friendly concrete is twofold: firstly its strength and durability properties are consistent with that of the conventional concrete, even though it includes discarded and recycled materials and secondly it contributes for waste minimization and management in a eco-friendly way [4].…”

Section: Introductionmentioning

confidence: 99%

Valorization of incinerator bottom ash for the production of resource-efficient eco-friendly concrete: Performance and toxicological characterization

Ramesh¹,

Vongole²,

Nagraj³

et al. 2021

Archit. Struct. Constr.

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In recent times, the quantity of wastes generated from industries, hospitals, construction sites etc. is perpetually increasing from year to year. Producing concrete utilizing waste or discarded materials as a partial replacement to fine or coarse aggregates is one among the effective ways of waste utilization. The disposal of incinerator bottom ash usually produced by the incineration of inorganic constituents of the municipal solid wastes (MSW) in an eco-friendly way is one of the issues of concern, globally. By the way, the present study is related to the utilization of MSW incinerator bottom ash and recycled demolition waste aggregate as partial replacement materials for fine and coarse aggregate, respectively to produce eco-friendly concrete. This study adopted an innovative pretreatment technique for stabilizing the MSW incinerator bottom ash. Five distinct M20 grade concrete mixes were produced with different proportions of fine aggregate, MSW incinerator bottom ash, coarse aggregate, and recycled demolition waste aggregate along with cement and water. The incinerator bottom ash was replaced at 5% and 10% quantities with fine aggregate and the recycled demolition waste aggregate was replaced at 40% and 60% of the weight of the coarse aggregate. The strength and durability properties of the M20 grade concrete were analyzed. It was noticed that the strength and durability properties of the eco-friendly concrete specimens produced by incorporating 5% -incinerator bottom ash and 40% -recycled demolition waste aggregate were superior to that of the control mix concrete. Laboratory tank leaching tests showed that the eco-friendly concrete do not pose any significant environmental hazard. Furthermore, the microstructural analysis through scanning electron microscope (SEM) images, revealed dense aggregate paste matrix interfaces with less micro-pores and insignificant micro-cracks due to the incorporation of incinerator bottom ash as a partial replacement to the fine aggregate.

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Eco-concrete for sustainability: utilizing aluminium dross and iron slag as partial replacement materials

Cited by 36 publications

References 25 publications

Valorization of Al slag in the production of green ceramic tiles: Effect of experimental conditions on microstructure and crystalline phase composition

Valorization of Al slag in the production of green ceramic tiles: Effect of experimental conditions on microstructure and crystalline phase composition

Waste materials in highway applications: An overview on generation and utilization implications on sustainability

Valorization of incinerator bottom ash for the production of resource-efficient eco-friendly concrete: Performance and toxicological characterization

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