Peys, A. .; Valentini, L.; Baral, A.; Babaahmadi, A.; Perumal, P.; Davolio, M.; Ferrara, L.; Kanellopoulos, A. .; Hanein, T. Opening Letter of RILEM TC UMW: Upcycling Powder Mineral Wastes into Cement Matrices — Challenges and Opportunities. RILEM Tech Lett 2025, 10, 33-43.