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Concrete Cover For Retaining Wall?

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psustruct

psustruct

Structural
Joined
Dec 2, 2010
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16
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If a retaining wall is permanently exposed to earth, shouldn't the concrete cover be 3"? Why am I seeing so many engineers use a 2" cover?
 
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others will have better answers, but I believe you can use less cover if the wall is formed and the back-filled vs. cast directly against the earth with no forms.
 
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ACI only requires a 3" cover for earth-formed structures. It is 2" for walls that cast against formwork and permanently exposed to earth.
 
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yes, agree with steelion.

ACI says 3" cover for 'cast against and permanently exposed to earth'.

 
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OK. Thank you for the clarification.
 
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