%0 Journal Article %T Activity of fly ash as an indicator of their modifying ability %A Markova, I Yu %A Bezrodnykh, A A %A Markov, A Yu %A Strokova, V V %A Stepanenko, M A %J IOP Conference Series: Materials Science and Engineering %V 775 %N 1 %P 6 %@ 1757-8981 %D 2020-03-01 %~ DeepDyve