AQUEOUS-PHASE EQUILIBRIA IN THE SYSTEM CAO-AL2O3-CACL2-H2O - THE SIGNIFICANCE AND STABILITY OF FRIEDELS SALT

被引:36
作者
ABATE, C [1 ]
SCHEETZ, BE [1 ]
机构
[1] PENN STATE UNIV,MAT RES LAB,UNIVERSITY PK,PA 16802
关键词
D O I
10.1111/j.1151-2916.1995.tb08418.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Friedel's Salt is a poorly understood phase in the CaO-Al2O3-CaCl2-H2O system, which is critical in the function and stability of salt-saturated portland cement-based grouts. Such grouts are required to seal exploratory excavations in a radioactive waste repository sited in bedded salt. The phase equilibria of this system were investigated, and four quaternary invariant points were determined to allow construction of a phase diagram. The diagram is constructed using a plotting technique applicable to double-decomposition systems or systems with a reciprocal salt pair. Statistical analysis of solution data was performed to assess the precision and accuracy of the invariant points.
引用
收藏
页码:939 / 944
页数:6
相关论文
共 16 条
[1]  
AHMED SJ, 1969, 7TH P INT C CHEM CEM, P120
[2]  
APPOLONIA D, 1980, ONWI55 OFF NUCL WAST
[3]   THE SYSTEM NA2O-CAO-SIO2-H2O [J].
BROWN, PW .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (11) :3457-3461
[4]  
BROWN PW, 1989, MAT SCI CONCRETE, P73
[5]  
DANS J, 1953, ZEM-KALK-GIPS, V6, P302
[6]  
FILIPPAKIS S, 1987, Z KRISTALLOGR, V181, P29
[7]  
GRUTZECK MW, 1985, BMIONWI568 PENNS STA
[8]   THEORETICAL PREDICTION OF THE THERMODYNAMIC BEHAVIOR OF AQUEOUS-ELECTROLYTES AT HIGH-PRESSURES AND TEMPERATURES .4. CALCULATION OF ACTIVITY-COEFFICIENTS, OSMOTIC COEFFICIENTS, AND APPARENT MOLAL AND STANDARD AND RELATIVE PARTIAL MOLAL PROPERTIES TO 600-DEGREES-C AND 5 KB [J].
HELGESON, HC ;
KIRKHAM, DH ;
FLOWERS, GC .
AMERICAN JOURNAL OF SCIENCE, 1981, 281 (10) :1249-1516
[9]  
KUZEL HJ, 1969, 7TH P INT C CHEM CEM, P19
[10]  
PITZER KS, 1973, J PHYS CHEM-US, V3, P268