硅酸盐学报2012，Vol.40Issue(2)：234-239,6.
NaOH激发粉煤灰基胶凝材料的水化产物
Hydration Products of Fly Ash Based Cementing Material Activated By NaOH
摘要
Abstract
A fly-ash based alkali-activated cementing material （FACM） was prepared by using fly ash as a raw material and NaOH as an activating agent. The effect of curing conditions on the compression strength of FACM was investigated. The mineral composition of FACM at different ages was analyzed by X-ray diffracion. The microstructure and element composition of hydration products of this material at different ages were characterized by scanning electron microscope with X-ray energy dispersive technique. The results show that the compression strength of FACM is enhanced under steam curing condition. The glass phase in fly ash participated in the hydration reaction, but the inert phases such as mullite, quartz, magnetite, etc. did not be involved in. Zeolite precursor formed in the pore of FACM in the early hydration process, and the particle size grew up to 1 pin with the cross-shape after cured for I d. With the prolonging of curing time, the particle size could be 5 ~tm. With the time prolonged, the particles overlapped with each other, filled in the entire pore and formed the compact reticulate structure, favoring the improvement of the compression strength of materials.关键词
粉煤灰/氢氧化钠：碱激发胶凝材料/水化产物Key words
fly ash/sodium hydroxide/alkali activated cementing material/hydration products分类
化学化工引用本文复制引用
李辉,诸葛丽君,史诗,徐德龙..NaOH激发粉煤灰基胶凝材料的水化产物[J].硅酸盐学报,2012,40(2):234-239,6.基金项目
陕西省工业攻关项目 （）
陕西省重点学科建设专项资金项目（2009-2011）. （）
