Abstract
Industrial waste with silica components is anticipated as an alternative resource for silica stone, which is the main material for Autoclaved Lightweight Concrete (ALC) Panels. Using cements and silica stone powder as main raw materials, ALC panels can be produced to have heat resistance and long-term stability because of their tobermorite crystalline contents. Tobermorite generation requires hydrothermal synthesis under saturated steam pressure at 180 °C. This study assessed glass waste availability as an alternative resource for silica stone. Candidates were tiles and pot shard waste, liquid crystal glass, and glass bottles. Considering the influence on hydration products, these were evaluated using X-ray powder diffraction (XRD) analysis. Results show that the optimum replacement of silica stone powder with tiles and pot shards waste was approximately 25 % to produce tobermorite formation and dense structure. Calculating the demand of alternative resources and the supply of tiles and pot shard waste, results suggest that the 80 % of its annual emissions are useful.
