Studies of the crystallization of the liquid phase in Portland clinker: Effects of MgO and Na2O
Studies of the crystallization of the liquid phase in Portland clinker: Effects of MgO and Na2O
复制标题
DOI：
10.1016/0008-8846(80)90120-9
复制
发表时间：
1980-05
影响因子：
11.4
通讯作者：
K. Han;F. Glasser;J. Gard
中科院分区：
文献类型：
--
作者：
K. Han;F. Glasser;J. Gard
含CaO= 48.9, a2o3 = 23.2, fe2o3 = 14.2, sio2 = 5.71, MgO= 5.0, na2o = 3.0 （wt%）的玻璃在650°-700°C下脱硝得到大量菱形晶相，aH= 10.61, c_h = 26.18 a∶∶给出了部分索引粉末x射线数据。相对于144个氧原子，该相的组成近似为ca59。7 Na 3。5毫克6。0 a l29。7 . [au:]4 Si 5。9 / 144。它的结晶部分抑制了脱氮过程中c3a的形成。还给出了由该玻璃形成的原始c3a的成分数据。Fe和Si在这种不稳定的c3a中的溶解度大大超过了平衡值。
Devitrication of a glass containing CaO= 48.9, Aℓ 2 O 3= 23.2, Fe 2 O 3= 14.2, SiO 2= 5.71, MgO= 5.0, Na 2 O= 3.0 (wt%) at 650°-700° C yields large amounts of a crystalline phase which is rhombohedral, aH= 10.61, c H= 26.18 A ̊. Partially-indexed powder x-ray data are given. The phase has the approximate composition, relative to 144 oxygens: Ca 59. 7 Na 3. 5 Mg 6. 0 Aℓ 29. 7 Fe 13. 4 Si 5. 9 O 144. Its crystallization partially suppresses formation of C 3 A during devitrification. Compositional data are also given for proto-C 3 A formed from this glass. The solubilities of Fe and Si in this unstable variety of C 3 A considerably exceed the equilibrium values.