GEOPOLYMER COMPOSITION CONTAINING FLY ASH AND BLAST FURNACE SLAG

摘要

PURPOSE: A GEO polymer composition containing fly ash and blast furnace slag is provided to improve durability at high temperature and compressive strength by recycling the fly ash and the blast furnace. CONSTITUTION: A GEO polymer composition containing fly ash and blast furnace slag comprises a mixture of the fly ash and blast furnace slag and sodium silicate solution which has a molar ratio of 1.0-2.5. The sodium silicate solution is added in liquid/solid weight ratio of 0.15-0.40. A molar ratio of SiO2/Al2O3 in the mixture of the fly ash and blast furnace slag is 1.5-2.5. A GEO polymer mortar is composed of 1.5-2.5 parts by weight of GEO polymer composition and 4.0-5.0 parts by weight of sand. A manufacturing method of the GEO Polymer molding product comprises the following steps: making slurry, molding, and natural curing the GEO polymer mortar; heat treating the GEO Polymer molding product at 200-1100 deg. Celsius after drying; and crystallizing the heat-treated GEO Polymer molding product at 800 deg. Celsius.