PHYSICOCHEMICAL ENGINEERING OF HYBRID FIBER-REINFORCED GEOPOLYMER COMPOSITES BASED ON COAL ASH СтатьяFediuk Roman Sergeevich, Klyuev Sergey Vasilievich, Vasiliev Yuri, Meshalkin Valeriy P., Ignatyev Alexey, Yazyev Serdar B.JOM. Том 78. 2026. С. 1841-1850