00648naa#a2200193#i#450# EN\\bibl\13934 20240430013036.2 2071-7318 20161225b2016####ek#y0engy0150####ca RUS RU MICROWAVE PROCESSING OF SURFACE-MODIFIED QUARTZ SAND AND ITS INFLUENCE ON THE HARDENING AND STRENGTH OF GYPSUM-SAND COMPOSITIONS Journal article Belgorod Belgorod State Technological University named after V.G. Shukhov 2016 2 с. Journal article local Lapteva Svetlana Pavlenko V. I. Gladkikh Yuriy naukaru.ru