Investigation of the Possibility of Utilizing Man-Made Waste to Produce Composite Binders
Kuldeyev E. Begentayev M. Sarsenbayev B. Kolesnikov A. Syrlybekkyzy S. Agabekova A. Bayamirova R. Togasheva A. Zholbassarova A. Koishina A. Kuldeyeva E. Zhunisbekova D. Mutasheva G.
October 2025Multidisciplinary Digital Publishing Institute (MDPI)
Journal of Composites Science
2025#9Issue 10
In this article, composite binders based on industrial waste—phosphogypsum, granular phosphoric slag, and burnt barium carbonate tailings––are investigated. It was found that the optimal composition (65% slag, 20% phosphogypsum, 15% tailings) provides compressive strength up to 31.1 MPa after steaming, which corresponds to grade M300 cement. Replacing natural gypsum with phosphogypsum increases strength by 5–10%, and using waste reduces cost by 20–25% compared to traditional binders. This technology eliminates the need for high-temperature firing, reducing energy consumption by 40–50%. Neutralization of harmful impurities of phosphogypsum with oxides of MgO and CaO reduces the ecotoxicity of the material by 70–80%. It is shown that hydrothermal treatment accelerates hardening, providing 90% of brand strength in 28 days. The developed binders are promising for the production of building blocks, road surfaces, and land reclamation.
barium carbonate tailings , composite binders , eco-friendly construction , environmental engineering , hydrothermal hardening , phosphogypsum , phosphoric slag
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K.I. Satpayev Kazakh National Research Technical University, Almaty, 050013, Kazakhstan
Scientific Research Laboratory Building Materials, Construction and Architecture, M. Auezov South Kazakhstan University, Shymkent, 160012, Kazakhstan
Department of Life Safety and Environmental Protection, M. Auezov South Kazakhstan University, Shymkent, 160012, Kazakhstan
Department of Ecology and Geology, Sh. Yesenov Caspian University of Technology and Engineering, Aktau, 130002, Kazakhstan
Department of Engineering, Khoja Akhmet Yassawi International Kazakh-Turkish University, Str. B. Sattarkhanova, 29, Turkestan City, 161200, Kazakhstan
Department of Petrochemical Engineering, Sh. Yesenov Caspian University of Technology and Engineering, Aktau, 130002, Kazakhstan
Department of Higher Mathematics and Physics for Technical Specialties, M. Auezov South Kazakhstan University, Shymkent, 160012, Kazakhstan
Department of Soil Science, Agrochemistry and Ecology, Kazakh National Agrarian University, Almaty, 050010, Kazakhstan
K.I. Satpayev Kazakh National Research Technical University
Scientific Research Laboratory Building Materials
Department of Life Safety and Environmental Protection
Department of Ecology and Geology
Department of Engineering
Department of Petrochemical Engineering
Department of Higher Mathematics and Physics for Technical Specialties
Department of Soil Science
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