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Design of alkali-activated aluminium powder foamed materials for precursors with different particle sizes
https://orcid.org/0000-0002-2694-5462
Highlights Tungsten mining waste mud-based AAFs with aluminium powder. Compressive strength increases when reducing precursors’ particle size. Higher expansion volume obtained with large precursors’ particle size. The formation of large pores appears to be more dependent on the amount of Al powder. The number of small pores formed is more dependent on precursors particle size.
Abstract Alkali-activated foams (AAFs) were produced using three different precursors with maximum particle sizes of (150, 300, and 500 µm), together with a blend of 70% tungsten mining waste mud (TWM), 20% waste glass (WG), and 10% metakaolin (MK). Aluminium powder (Al) was used as a foaming agent and added first to the dry powders with the mass used varying from 0.1 g to 0.5 g. The effect of using different precursor particle sizes on the AAFs compressive strength, volume expansion and pore size distribution was studied. The results obtained show that by reducing the particle size of the precursor, the foamed materials’ compressive strength increases.
Design of alkali-activated aluminium powder foamed materials for precursors with different particle sizes
https://orcid.org/0000-0002-2694-5462
Highlights Tungsten mining waste mud-based AAFs with aluminium powder. Compressive strength increases when reducing precursors’ particle size. Higher expansion volume obtained with large precursors’ particle size. The formation of large pores appears to be more dependent on the amount of Al powder. The number of small pores formed is more dependent on precursors particle size.
Abstract Alkali-activated foams (AAFs) were produced using three different precursors with maximum particle sizes of (150, 300, and 500 µm), together with a blend of 70% tungsten mining waste mud (TWM), 20% waste glass (WG), and 10% metakaolin (MK). Aluminium powder (Al) was used as a foaming agent and added first to the dry powders with the mass used varying from 0.1 g to 0.5 g. The effect of using different precursor particle sizes on the AAFs compressive strength, volume expansion and pore size distribution was studied. The results obtained show that by reducing the particle size of the precursor, the foamed materials’ compressive strength increases.
Design of alkali-activated aluminium powder foamed materials for precursors with different particle sizes
https://orcid.org/0000-0002-2694-5462
Highlights Tungsten mining waste mud-based AAFs with aluminium powder. Compressive strength increases when reducing precursors’ particle size. Higher expansion volume obtained with large precursors’ particle size. The formation of large pores appears to be more dependent on the amount of Al powder. The number of small pores formed is more dependent on precursors particle size.
Abstract Alkali-activated foams (AAFs) were produced using three different precursors with maximum particle sizes of (150, 300, and 500 µm), together with a blend of 70% tungsten mining waste mud (TWM), 20% waste glass (WG), and 10% metakaolin (MK). Aluminium powder (Al) was used as a foaming agent and added first to the dry powders with the mass used varying from 0.1 g to 0.5 g. The effect of using different precursor particle sizes on the AAFs compressive strength, volume expansion and pore size distribution was studied. The results obtained show that by reducing the particle size of the precursor, the foamed materials’ compressive strength increases.
Design of alkali-activated aluminium powder foamed materials for precursors with different particle sizes
Beghoura, Imed (author) / Castro-Gomes, João (author)
Construction and Building Materials ; 224 ; 682-690
2019-07-03
9 pages
Article (Journal)
Electronic Resource
English
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