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Abstract Ammonia-soda residues (ASR), by-products from ammonia-soda factories, inevitably cause severe water pollution and soil contamination due to their strong alkaline features and polluting elements such as magnesium. The current… Click to show full abstract
Abstract Ammonia-soda residues (ASR), by-products from ammonia-soda factories, inevitably cause severe water pollution and soil contamination due to their strong alkaline features and polluting elements such as magnesium. The current recycling efficiency of these residues is quite low, only 3–4% in China, which calls for urgent improvement. This study focuses on the feasibility of reusing ASR in magnesium oxychloride cement (MOC) products. Initially, characteristics of ASR including physical/chemical properties were investigated. Then, impact of ASR on the fluidity and mechanical performance of MOC pastes were experimentally researched and analyzed according to microstructure observations. Results show that ASR is generally characterized with small particle size (95.8%
Journal Title: Construction and Building Materials
Year Published: 2021
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