Alkali-hydrothermal activation of tailings with red mud as a supplementary alkali source to synthesize one-part geopolymer

Liu, Qing; Chen, Zhenyu; El-Bahy, Zeinhom M.; Wang, Peng; Abdou, Safaa N.; Ibrahim, Mohamed M.; Wan, Yukun; Wang, Junxiang; Li, Handong; Li, Lin; Wang, Hui

doi:10.1007/s42114-023-00707-3

Cited by 14 publications

(2 citation statements)

References 46 publications

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“…and activators which includes various mine tailing slags, red mud, biomass ashes, construction and demolition waste, calcined clays, and more. [50][51][52][53][54][55][56][57][58][59][60] The valorization of widely available, aluminosilicate-containing mine tailings to make geopolymers is also a rich area of potential research. While utilizing such industrial wastes for useful products is a positive aspect, they also introduce new mineralogical and chemical aspects and compounds that can significantly affect the alkali-activation process.…”

Section: What Are the Barriers?mentioning

confidence: 99%

Why geopolymers and alkali‐activated materials are key components of a sustainable world: A perspective contribution

Kriven,

Leonelli,

Provis

et al. 2024

J Am Ceram Soc.

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This perspective article delves into the transformative potential of alkali‐activated materials, acid‐activated materials, and geopolymers in mitigating climate change and market challenges. To harness the benefits of these materials, a comprehensive strategy is proposed. This strategy aims to integrate these materials into existing construction regulations, facilitate certification, and promote market access. Emphasizing research and innovation, the article advocates for, increased funding to refine the chemistry and production of these materials, prioritizing low‐cost alternatives and local waste materials. Collaboration between academia and industry is encouraged to expedite technological advances and broaden applications. This article also underscores the need to develop economic and business models emphasizing the long‐term benefits of these materials, including lower life‐cycle costs and reduced environmental impact. Incentivizing adoption through financial mechanisms like tax credits and subsidies is suggested. The strategy also includes scaling up production technology, fostering industrial collaboration for commercial viability, and developing global supply chains. Educational programs for professionals and regulators are recommended to enhance awareness and adoption. Additionally, comprehensive life‐cycle assessments are proposed to demonstrate environmental benefits. The strategy culminates in expanding the applications of these materials beyond construction, fostering international collaboration for knowledge sharing, and thus positioning these materials as essential for sustainable construction and climate change mitigation.

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Section: What Are the Barriers?mentioning

confidence: 99%

Why geopolymers and alkali‐activated materials are key components of a sustainable world: A perspective contribution

Kriven,

Leonelli,

Provis

et al. 2024

J Am Ceram Soc.

View full text Add to dashboard Cite

show abstract

“…Building upon this, further scholars have explored the microreactive process of geopolymers. Liu et al 20 investigated the effect of adding high-alkali red mud while using NaOH as an alkaline activator and found that increasing the alkalinity facilitated the activation of minerals, resulting in shorter induction periods and higher hydration rates. Subsequently, they further studied the influence of alkali content and observed that a higher concentration of NaOH accelerated the hydration process, reducing the induction time.…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamics simulation of the initial stage induction of alkali-activated aluminosilicate minerals

Guo,

Chen,

Tang

et al. 2024

RSC Adv.

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Modifying Polyvinylidene Chloride Resin with Fluorine Monomer and Cross‐Linking Monomers

Gao,

Zhang,

Song

et al. 2024

Macromol. Rapid Commun.

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Modified polyvinylidene chloride (PVDC) resin was prepared using octafluoropentyl methacrylate and trimethylolpropane trimethacrylate as modifying monomers through seeded emulsion polymerization. The successful incorporation of octafluoropentyl methacrylate into the PVDC resin was confirmed by Fourier transform infrared spectroscopy (FTIR) and X‐ray photoelectron spectroscopy (XPS) analyses. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and XPS were utilized to investigate the element distribution in the modified monomer emulsion and the mechanism of monomer modification. The results demonstrated that the fluorine monomer was reacted in the resin, and mainly concentrated on the surface of the resin. The addition of octafluoropentyl methacrylate and trimethylolpropane trimethacrylate improved the water resistance of the resin. Compared to unmodified PVDC resin, the contact angle of the modified PVDC resin increased from 89.46° to 109.51°, and the water resistance at room temperature increased from 120 to 500 h. Furthermore, the modified resin exhibited excellent mechanical properties, thermal stability, and storage stability.

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Alkali-hydrothermal activation of tailings with red mud as a supplementary alkali source to synthesize one-part geopolymer

Cited by 14 publications

References 46 publications

Why geopolymers and alkali‐activated materials are key components of a sustainable world: A perspective contribution

Why geopolymers and alkali‐activated materials are key components of a sustainable world: A perspective contribution

Molecular dynamics simulation of the initial stage induction of alkali-activated aluminosilicate minerals

Modifying Polyvinylidene Chloride Resin with Fluorine Monomer and Cross‐Linking Monomers

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