On 8/8/2013 11:38 AM, Pete C. wrote:

Oren wrote:

On Thu, 08 Aug 2013 14:44:01 +0000, phxmod
wrote:

I have a load bearing cmu block wall (roof ties into it) that a plumber
had to access inside to get to a water line to abandon. To do this he
knocked out approximately a 12" tall by 8" wide hole in the wall near the
bottom with a hammer (wall is a 10' tall and 8x4x16 open cell block not
filled or rebar). See image.

http://www.homeownershub.com/img/10

Broken link fixed.


Should I be concerned about the structural integrity of the wall being
compromised from a hole this size, or should I add any kind of support to
it?

Also, what can be done to cover back up the hole?

Replace some blocks?

Mix up some cement to a good "plastic" consistency, pack it into the
compromised cells and brace a piece of plywood against the wall so the
cement doesn't slump as it cures. Will be at least as strong as the
unfilled block was originally.


http://www.copper.org/applications/p..._concrete.html

read this before you do it. might want to wrap the pipes first

nate