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.
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