Preparation and characterization of foams from sheet glass and fly ash using carbonates as foaming agents

Silica fume as porogent agent in geo-materials at low temperature

“…9 In the same way, glass foams displaying efficient compressive strength were obtained using sheet-glass cullet with dolomite or calcite as the foaming agent. 10 Among the different families of geopolymers, those based on potassium rather than sodium present modified thermal and mechanical properties due to the larger size of the potassium ion. [11][12][13] Currently, there is a political as well as a societal demand for products that require less energy for the manufacturing process and are easy to recycle.…”

Fabrication of highly insulating foam glass made from CRT panel glass

“…The gaseous products, which expand the viscous glass melt, are generated by decomposition or redox reactions [6][7][8]. The frequently reported decomposition reactions of carbonates [9][10][11][12] lead to the formation of CO 2 gas, while the residual metal oxide is incorporated into the glass structure, thereby modifying its properties. On the other hand, no solid residuals occur from the oxidation of pure carbon or carbohydrate compounds.…”

Comparative Phenomenological Study of Fracture Behavior of Ceramic and Glass Foams under Compressive Stress Using In Situ X‐Ray Microtomography

“…[5] The foaming agents can be differentiated by the foaming mechanism into two groups: foaming agents which decompose above the softening point of the glass with evolution of gases (foaming by thermal decomposition) and foaming agents which react with the glass above the softening point (foaming by reaction). The foaming agents can be classified according to its chemical gas-releasing reaction into the neutralization foaming agents (carbonates, [6][7][8] sulfates, etc.) and redox foaming agents (silicon carbide, [9][10][11] silicon nitride, [12] manganese dioxide, [13] carbon, etc.).…”