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Pollution damage to the Powell Building, Reston, Virginia

Materials Performance

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Abstract

Concrete column segments of the Powell Building (Reston, VA) exposed to the elements and wetted by precipitation were `cleaned' and roughened, but sheltered portions of the columns retained their smoothness and pollution accumulates, similar to observations for limestone, marble, and sandstone. Weathering effects on the columns were dominated by precipitation run-off and not the acidity of the precipitation. The process may be dry deposition of sulfur dioxide (SO2) and nitric oxides (NOx) that formed soluble salts in the presence of humid air or dew, salts that were removed by precipitation run-off.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Pollution damage to the Powell Building, Reston, Virginia
Series title:
Materials Performance
Volume
38
Issue:
12
Year Published:
1999
Language:
English
Publisher:
NACE
Publisher location:
Houston, TX, United States
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
64
Last page:
69
Number of Pages:
6