A Sustainable Building Material Developed from Low-Temperature Sintering of Mining Waste with an Alkali-Silicate Solution

The development of glass-ceramic foam has received significant attention in building and construction, given its potential for sustainability. This study investigated the low-temperature route fabricating foams from mining waste. feasibility one-step or chemical-aided sintering using granite powder, a naturally sourced waste, rather than already heat-treated wastes such as glass fly ash been explored this study. Glass-ceramic samples were synthesized homogenous blend constant percentage by weight granite-clay mix with varying amounts alkali-silicate solution. influence solution on physicomechanical microstructural properties sintered at 850°C was investigated. results showed water absorption 9.5-33.3%, apparent porosity 18.2-56.7%, bulk density 1.7-1.91 g/cm3, compressive strength 20.7-26.3MPa. developed research can be suitably used thermal insulation buildings.