Kalyan Kr. Mandal and Suresh Thokchom and Mithun Roy, Effect of Na2O Content on Performance of Fly ash Geopolymers at Elevated Temperature. journal = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology. January 2011, vol. 49(1). 7 - 13 [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/3294.