Effect of Grinding Treatment of Fly Ash on Compressive Strength of Hardened Geopolymers using Warm Press MethodShinobu Hashimoto, Kosuke Kubota, Kotaro Ando, Yusuke Diko, Sawao Honda and Yuji IwamotoMATEC Web Conf., 97 (2017) 01120DOI: https://doi.org/10.1051/matecconf/20179701120