TY JOUR TI Increase in activity of sols and cements by activation in an aqueous medium KW ash-cement mixtures KW pozzolanic activity KW hydration KW joint activation JO Technique and technology of silicates AU Samchenko, S.V. AU Hohlov, D.S. AU Markov, N.D. PY 2018 IS 25 PB Individual Entrepreneur Svetlana Vasilievna Samchenko