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ABSTRACT Construction ceramics sintered from construction waste such as waste glass powder have excellent mechanical properties and good chemical durability. However, very high sintering temperatures are often required, and volume expansion occurs during the sintering of construction ceramics. In this study, the effect of bauxite on the density, porosity, crystal structure, and mechanical properties of low‐temperature sintered construction ceramics from construction waste was explored, and the reaction mechanism between bauxite and low‐temperature sintered construction ceramics from waste glass powder was revealed. The results showed that wollastonite and fluoramphibole were detected in 40% bauxite samples sintered at 750°C, while diopside was found in 10% bauxite samples sintered at 900°C. It was interesting that as sintering proceeded, Al elements gradually migrated into the glassy phase and Na elements gradually migrated into the bauxite. The aim of this study is to provide a research basis for sintering building ceramics with glass powder at low temperature.
Zhang et al. (Tue,) studied this question.