Structure and Properties of Variatropic Concrete Combined Modified with Nano- and Micro-silica Shcherban’ E.M., Stel’makh S.A., Mailyan L.R., Beskopylny A.N., Smolyanichenko A.S., Chernil’nik A.A., El’shaeva D.M., Beskopylny N.А. https://doi.org/10.58224/2618-7183-2024-7-2-3 Download PDF 3-shherban