A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Spalled concrete traced to conduit
Exposed concrete grandstand at new Washington, DC, stadium has been developing spalls and cracks in ramps, concourse floors and ceilings with aluminum conduit; many cracks display cleavage in concrete surface as well as longitudinal separation characteristic of temperature and shrinkage cracks; cause of corrosion is galvanic action set up by contact between reinforcing steel and aluminum conduit; controversy on question whether presence of calcium chloride, or other salt, is required in concrete to cause hazard, or whether it exists without it, is reported.
Spalled concrete traced to conduit
Exposed concrete grandstand at new Washington, DC, stadium has been developing spalls and cracks in ramps, concourse floors and ceilings with aluminum conduit; many cracks display cleavage in concrete surface as well as longitudinal separation characteristic of temperature and shrinkage cracks; cause of corrosion is galvanic action set up by contact between reinforcing steel and aluminum conduit; controversy on question whether presence of calcium chloride, or other salt, is required in concrete to cause hazard, or whether it exists without it, is reported.
Spalled concrete traced to conduit
Eng News-Rec
Engineering News-Record ; 172
1964
2 pages
Article (Journal)
English
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