One-part geopolymers from mining residues – Effect of thermal treatment on three different tailings

Perumal, Priyadharshini; Piekkari, Katri; Sreenivasan, Harisankar; Kinnunen, Päivö; Illikainen, Mirja

doi:10.1016/j.mineng.2019.106026

Cited by 55 publications

(25 citation statements)

References 22 publications

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“…One method of increasing the reactivity of the precursors is to calcine the mine tailings. For instance, the effect of thermal treatment on phosphate, kaolinite, and lithium mine tailings was investigated [92]. Regarding lithium tailings, even calcination did not result in a proper dissolution of material and therefore, the authors were not able to examine the mechanical properties ( Figure 6).…”

Section: Phosphate Lithium and Basaltmentioning

confidence: 99%

“…Regarding lithium tailings, even calcination did not result in a proper dissolution of material and therefore, the authors were not able to examine the mechanical properties ( Figure 6). On the other hand, the best results were observed at calcination temperature of 700 °C for both kaolinite and phosphate mine tailings [92]. Currently, efforts are being made to better understand and evaluate the most determinant and critical parameter that affects the mechanical and chemical properties of geopolymers.…”

Section: Phosphate Lithium and Basaltmentioning

confidence: 99%

“…Because of the crystalline nature of various tailings, calcination or thermal treatments have been widely used as a step toward achieving high-performance geopolymer cements and binders [76,77,92,[97][98][99]. Three major calcination methods are used at industrial stage which include rotary furnace, multiple earth furnace and flash calcination plants.…”

Section: Precursor Pre-treatment and Calcinationmentioning

confidence: 99%

“…On the other hand, the best results were observed at calcination temperature of 700 °C for both kaolinite and phosphate mine tailings [ 92 ]. Currently, efforts are being made to better understand and evaluate the most determinant and critical parameter that affects the mechanical and chemical properties of geopolymers.…”

Section: Quarry Dust and Mine Tailings As Precursorsmentioning

confidence: 99%

“… Lithium geopolymer calcination at different temperatures ( a ) not calcined, ( b ) calcined at 750 °C and ( c ) calcined at 900 °C, reproduced with permission from [ 92 ]. …”

Section: Figurementioning

confidence: 99%

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Quarry Waste as Precursors in Geopolymers for Civil Engineering Applications: A Decade in Review

Solouki

Viscomi²,

Lamperti³

et al. 2020

Materials

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Carbon footprint reduction of paving materials could be explored through recycling mining by-products into different applications, which will preserve natural resources and decrease environmental issues. One possible approach is to reuse quarry dust and mining ore waste as precursors in geopolymer applications. geopolymers are mineral polymers rich in aluminosilicates with an amorphous to a semi-crystalline three-dimensional structure. The current review aims to summarize the studies conducted during the past decade on geopolymers containing quarry dust and mine tailings. The first section discusses various precursors used for geopolymer cement production such as metakaolin, ground granulated blast furnace slag (GGBFS), fly ash, and quarry/mining ore wastes including silt, tungsten, vanadium, copper, gold, zinc, marble, iron, basalt, and lithium. Different calcination treatments and curing conditions have been summarized. In some cases, the precursors are required to be calcined to increase their reactivity. Both ambient temperature and elevated temperature curing conditions have been summarized. Less attention has been paid to room temperature curing, which is necessary for field and industrial implementations. Engineering properties such as compressive strength, density, durability and acid resistance, water absorption and abrasion of geopolymers containing mining waste were reviewed. One of the main barriers preventing the widespread use of waste powders, in addition to economic aspects, in geopolymers could be due to their unstable chemical structure. This was shown through extensive leachate of Na+ or K+ cations in geopolymer structures. The review of over 100 articles indicated the need for further research on different aspects of quarry waste geopolymer productions before its full industrial implementation.

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Section: Phosphate Lithium and Basaltmentioning

confidence: 99%

Section: Phosphate Lithium and Basaltmentioning

confidence: 99%

Section: Precursor Pre-treatment and Calcinationmentioning

confidence: 99%

Section: Quarry Dust and Mine Tailings As Precursorsmentioning

confidence: 99%

“… Lithium geopolymer calcination at different temperatures ( a ) not calcined, ( b ) calcined at 750 °C and ( c ) calcined at 900 °C, reproduced with permission from [ 92 ]. …”

Section: Figurementioning

confidence: 99%

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