Premium
Aqueous Phase Equilibria in the System CaO‐Al 2 O 3 ‐CaCl 2 ‐H 2 O: The Significance and Stability of Friedel's Salt
Author(s) -
Abate Christopher,
Scheetz Barry E.
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08418.x
Subject(s) - phase diagram , salt (chemistry) , aqueous solution , mineralogy , cement , decomposition , portland cement , phase (matter) , thermodynamics , materials science , chemistry , composite material , physics , organic chemistry
Friedel's Salt is a poorly understood phase in the CaO‐Al 2 O 3 ‐CaCl 2 ‐H 2 O 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.