Alkali consumption of solar glass

Can alkali-activated materials improve Waste Valorisation of glass?

Among the promising alternatives for improving waste valorisation of glass, alkali-activated materials (AAMs) emerge as a solution. Waste glasses can be employed both as aggregates and as precursors, with a focus on its application as the sole raw material for synthesis.

Can glass waste be used for alkali activation?

Particular attention is given to the valorisation of glass waste in the field of alkali activation, initially examining its role as an additive in conventional binders (such as metakaolin) and subsequently exploring its potential as the sole precursor for the synthesis of AAMs.

What is the molecular mechanism of mild alkali-activated glasses?

This suggests that the molecular mechanism of mild alkali-activated glasses is similar to glass corrosion. Due to the limited molarity, the alkaline solution does not allow for the complete dissolution of the glass used as raw material, but only affects the surface of the glass particles.

Why are glass components released in mild alkaline solutions?

However, in mild alkaline solutions, glass components released are considered minimal compared to the surface hydration of powdered particles, a phenomenon that leads to the formation of hydroxyl groups through bond cleavage of strong bonds (Si–O–Si, Si–O–Al, and Si–O–B).