JIANG Xiaoshu 1, ZHU Kaihua 2, LU Lei 2, ZHANG Yiling 3
(1.College of Civil Engineering and Construction, Changzhou Institute of Technology，Changzhou 213002; 2.School of Materials Science and Engineering, Nanjing University of Technology, Nanjing Jiangsu 210009; 3.Wuxi Branch of Jiangsu Institute of Special Equipment Safety Supervision and Inspection, Wuxi Jiangsu 214100)
Abstract:Foam glass-ceramic is prepared through sintering method from fly ash. The results show that the most appropriate foaming agent is carbonate and the optimum content is 5%. The most optimal conditions of heat treatment are determined by orthogonal experiment. The most optimal foaming temperature, heating rate and holding time are 1025°C, 14°C/min and 30min, respectively. The microstructure and crystallization phase of the foam glass-ceramic are studied by means of XRD and SEM. The primary crystallization phase is anorthite and the sub-phase is augite. The performances of the prepared foam glass-ceramic are better than foam glass and clay brick.
Key words:foam glass-ceramic; preparation; performance