Role of basalt dust in the formation of the modified gypsum structure Victoria Petropavlovskaya, Maria Zavadko, Kirill Petropavlovskii, Aleksandr Buryanov, Tatiana Novichenkova and Andrey Pustovgar E3S Web Conf., 97 (2019) 02036 Published online: 29 May 2019 DOI: 10.1051/e3sconf/20199702036