INFLUENCE OF ADDITIVES FROM CRUSHED QUARTZ SANDSTONE SCREENINGS ON PROPERTIES OF FINE-GRAINED CONCRETE СтатьяAyubov Narman A., Klyuev Sergey Vasilievich, Usanova Kseniia Iurevna, Shambina S.L., Shorstova E.S., Khezhev Tolya A., Sadigov Ramil A.AIP Conference Proceedings. Том 3256. 2025.