Akyüncü, Veysel, Yunus Emre Avşar, and Tolga Enes Emre. 2023. “Effect of Activator Type on Geopolymer Mortars Containing Different Types of Fly Ash”. Periodica Polytechnica Civil Engineering 67 (3):757-64. https://doi.org/10.3311/PPci.21945.