Looking for a reliable structure reference of calcium aluminum oxide sulfate,
4CaO-3Al2O3-S03 or C4A3S (PDF #33-256). C4A3S is the 'precursor' for
ettringite formation and is added to Portland cement to produce shrink-
compensated, fast-setting concrete.
Thanks
L. Keller
CAMET Research, Inc.
G
Dear LK
Below is the only ICSD structural data available for C4A3S. The
reference is :Saalfeld H, Depmeier W
Kristall und Technik, Vol 7, No. 229
Hope this is the right one. Just out of interest, do you have any
references to this compound's use in Portland