File:Primary efflorescence decades later 001.png

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:47, 27 September 2014		14,700 × 10,872 (29.94 MB)	Achim Hering	{{Information \|Description ={{en\|1=This is primary efflorescence, from the appearance of the salts amanating from the concrete. However, this efflorescence did not take place shortly after the concrete was placed. The concrete was placed in 1962. Th...

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