Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1457991 | Cement and Concrete Research | 2006 | 7 Pages |
Abstract
The crystalline structure of ettringite, Ca6[Al(OH)6]2(SO4)3·∼26H2O, was investigated using high-resolution time-of-flight neutron powder diffraction techniques. The powder diffraction data were subjected to Rietveld crystal structure refinement. The resultant ettringite crystal structure confirmed the positions of Ca, Al, and S atoms while permitting a more precise determination of the locations of O and H atomic positions than in previous X-ray and neutron diffraction studies. A discussion of the ettringite hydrogen bonding network is presented, illustrating the role of hydrogen bonding in the stabilization of the ettringite structure.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Industrial and Manufacturing Engineering
Authors
M.R. Hartman, R. Berliner,