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Hydrolysis of Pure and Sodium Substituted Calcium Aluminates and Cement Clinker Components Investigated by in Situ Synchrotron X‐ray Powder Diffraction
Author(s) -
Christensen Axel Nørlund,
Jensen Torben R.,
Scarlett Nicola V. Y.,
Madsen Ian C.,
Hanson Jonathan C.
Publication year - 2004
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.1551-2916.2004.01488.x
Subject(s) - clinker (cement) , synchrotron , hydrolysis , powder diffraction , cement , calcium , x ray crystallography , materials science , chemistry , sodium , phase (matter) , diffraction , nuclear chemistry , crystallography , mineralogy , metallurgy , portland cement , organic chemistry , physics , optics , nuclear physics
The hydrolysis of pure and sodium‐substituted calcium aluminates and cement clinker phases was investigated in situ in the temperature range 25°–170°C, using the angle dispersive powder synchrotron powder X‐ray diffraction technique. The final hydrolysis product in all cases was Ca 3 Al 2 (OH) 12 . The intermediate phase Ca 4 Al 2 O 7 ·19H 2 O was formed from the pure calcium aluminates, and the intermediate phases Ca 4 Al 2 O 7 · x H 2 O, x = 11, 13, or 19, were formed from the cement clinker phases.