碱赤泥矿渣胶凝材料水化产物中碱的测定  

Mensuration of Na_2O in Hydrated Alkali- Activated Red Mud and Slag Cementitious Material

作　　者：陈悦[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009

出　　处：《硅酸盐通报》2005年第3期117-120,共4页Bulletin of the Chinese Ceramic Society

摘　　要：用水溶解的方法再借助火焰光度法分别测定了碱赤泥矿渣胶凝材料水化浆体中可溶于水和不溶于水的Na2O含量,提出了在碱赤泥矿渣胶凝材料中Na2O以可溶性化合物和结合为水化产物2种状态存在的观点。研究了水化浆体中可溶性Na2O和不溶性的Na2O含量随溶解时间的变化,确定了最佳的溶出时间。证实了在水化过程中,Na2O具有2种作用:催化作用和直接参与形成水化产物。The variation of existence of Na2O in alkali- activated red mud a nd slag cementitious material(AARMS) was studied. The content of Na2O in compoun d which may dissolved in water and in hydrates was determined. It is considered that there exist two states for Na2O in AARMS pastes. The content of Na2O existi ng in two states was determined in diffent dissolving time. It is ascertained th at during the hydration of AARMS,Na2O plays two roles,that is,one is catalysis, the other is as component in the hydration products of AARMS.

关 键 词：碱赤泥矿渣胶凝材料 水化活性 碱 火焰光度法 水溶解法 催化作用 碱矿渣水泥 

分 类 号：TQ172.44[化学工程—水泥工业]