Quote:
Originally Posted by harryc
Chicago has lots of exposed concrete - including most of the streets and many of our bridges, survives the weather just fine as long as you don't bury it in salt.
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Quote:
Originally Posted by harryc
The "new floors" were left exposed until cladding was ready to start. The building is concrete - stands up very very well to wind/rain/snow.
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Concrete does hold up to the weather fairly well but it's not immune to weather. It doesn't crack because it's buried in salt it cracks because water has a greater volume in a solid state. When water get's into the pores of concrete it creates pressure when it freezes which causes cracking and deterioration.