固溶稀土氧化物的B矿晶体性质及其水化性能

The Crystal Properties and Hydration Characteristics of Belite Doped Rare-Earth Oxide

运用化学分析、XRD、SEM、DTA等测试方法 ,研究了稀土氧化物对B矿的晶体性质及其水化性能的影响 .结果表明 :稀土氧化物的掺入可细化B矿晶体 ,同时有利于高温型C2 S晶型稳定 ,并可有效阻止 β型C2 S向γ型C2 S转化 ,加入适量稀土氧化物可显著提高B矿水化活性及其浆体强度 .

The effect of several rare_earth oxides on the crystal properties of belite and its hydration characteristics were investigated by means of chemical analysis,XRD,SEM,DTA etc. The results show that the added rare_earth oxide minimizes the crystal belite and that it helps to maintain the stability of the crystal form of belite and can efficiently avoid the crystal form changing from β _C 2S to γ _C 2S. Thus, adding a suitable amount of rare earth oxide can markedly highten the hydration activity and the paste strength of belite.