The use of technogenic carbon in gypsum compositions for green buildingKirill Petropavlovskii, Ekaterina Ratkevich, Tat’yana Novichenkova and Viktoriya PetropavlovskayaE3S Web Conf., 403 (2023) 03013DOI: https://doi.org/10.1051/e3sconf/202340303013