Giergiczny, Zbigniew, Albin Garbacik, and Mikołaj Ostrowski. “Pozzolanic and Hydraulic Activity of Calcareous Fly Ash”. Roads and Bridges – Drogi i Mosty 12, no. 1 (February 1, 2014): 71–81. Accessed April 7, 2025. https://rabdim.pl/index.php/rb/article/view/v12n1p71.