Preparation of low-carbon cementitious materials based on fly ash from biomass power plant by alkali-salt solid waste synergistic effect: Activator ratio optimization, hydration process and sustainability assessment - Xiaowei Ge; Xiaowei Gu; Shenyu Wang; Xu Wang; Ziyang Hu; Hao Wang; Jianping Liu; Tuan Ngo (Process Safety and Environmental Protection, 2025)