Effect of porcelain tile polishing residue on eco-efficient geopolymer: Rheological performance of pastes and mortars

Brazil produces 900 mi m2 of ceramic tiles annually, which generates about 60,000 tons of porcelain tile polishing residue (PPR). In previous work, the authors confirmed the feasibility of using PPR in the production of geopolymer pastes regarding mechanical and microstructural properties. This work investigated the rheological and ecological performance of geopolymer pastes and mortars produced with metakaolin replacement by PPR in 0–100%,...