【摘要】 脱硫石膏粉煤灰胶结材(简称DGF胶结材)是以未经煅烧的脱硫石膏和粉煤灰为主要原料配制而成的新型石膏基胶结材.本文对DGF胶结材的适宜养护方式与制度进行了研究.结果表明,该胶结材适于湿热养护,制度为升温速度20℃/h 恒温温度85℃,恒温时间7h.并结合XRD、SEM及水化热测定等对胶结材的热养护适应性作了阐述.更多还原

【Abstract】 Desulphogypsum fly ash is a new type of cementitious materials which is com-posed mainly of fly ash and non-calcined desulphogypsum. The proper curing method and re-gime for DGF were studied. The results show that DGF is suitable for steam curing: temperature increasing rate is 20℃ / h in the sinitial period, and then the temperature is kept at 85℃ for 7 hr.更多还原