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2025-09-03

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cc-by (c) Alfocea-Roig, A. et al., 2025
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/223142

Unlocking Alternative Cement Solutions: Utilizing Wastes and By-Products for Magnesium Phosphate Cement Development

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https://doi.org/https://doi.org/10.3390/urbansci9090352

Abstract

Concrete is the most used material worldwide, with cement as its essential component. Cement production, however, has a considerable environmental footprint contributing nearly 8% of global CO2 emissions, largely from clinker calcination. This review aims to examine strategies for reducing these emissions, with a particular focus on alternative materials for producing magnesium phosphate cements (MPCs). Specifically, the objectives are first to summarize mitigation pathways, such as CO2 capture, energy efficiency, and alternative raw materials, and second evaluate the feasibility of using industrial wastes and by-products, including low-grade MgO, tundish deskulling waste (TUN), boron-MgO (B-MgO), and magnesia refractory brick waste (MRB), as MgO sources for MPC. The review highlights that these materials represent a promising route to reduce the environmental impact of cement production and support the transition toward carbon neutrality by 2050.

Subject

Magnesi, Ciment, Economia circular

Subject (English)

Magnesium, Cement, Circular economy

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Articles publicats en revistes (Ciència dels Materials i Química Física)

Citation

ALFOCEA ROIG, Anna, et al. Unlocking Alternative Cement Solutions: Utilizing Wastes and By-Products for Magnesium Phosphate Cement Development. Urban Science. 2025. Vol. 9, num. 9. ISSN 2413-8851. [consulted: 10 of August of 2026]. Available at: https://hdl.handle.net/2445/223142

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