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RE: Concrete Crack Repair[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: Concrete Crack Repair
- From: Harold Sprague <spraguehope(--nospam--at)hotmail.com>
- Date: Fri, 11 May 2012 13:31:31 -0500
Daryl is correct. If you inject from both sides, the patching should not be an issue. The epoxy structurally bonds the concrete. The epoxy is stronger than the parent concrete.
Regards, Harold Sprague
Subject: Re: Concrete Crack Repair
Date: Fri, 11 May 2012 10:30:19 -0600
Concrete is assumed to be cracked, therefore, as long as there is bearing across the crack you should have all the strength you need. If you're considering the Whitney stress block for your analysis and have a low steel ratio (I think you will have a low steel ratio for mid height of a retaining wall) the actual required bearing area of the concrete will also be small.
I think your greatest concern will be protecting the reinforcing from corrosion at the point of the crack. You may want to apply a patch over the crack on the back side of the wall as an added protection against this.
H. Daryl Richardson
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