Thanks Ray. I did test with 1/4" pvc but I figured it would have too much play in it (too much room for the bricks to shift), not to mention 1/4" is fairly easily bendable (at least the type I have). I guess I had imagined burying the pvc into the ground a few inches to keep them from shifting. I'm going to price rebar.
Jeffrey, that is interesting. Awhile back I actually knocked down a brick pit that had clay bricks on the interior. The bricks on the shell of the pit were rock solid stuck together. The clay bricks on the interior came apart very easily. I actually remember a lot of sand when taking it apart. I wonder if that was the mixture used for those clay bricks.
The quarter inch space you mention is the place where mortar is usually placed.
If you use 1/2" rebar, that will allow room to shift the bricks to close the gap. Or, you could use 1/4" pipe. Mcmaster.com has it.
KrazyKyngeKorny (Krazy, not stupid)
On Fri, Nov 4, 2011 at 12:21 PM, subprong <subprong@gmail.com> wrote:Interesting that you mention re-bar. My original thought was to lay them out normally stacjed and then stick pieces of PVC through the holes thinking it would be fairly cheap.
I tried it out on a few bricks last night to check for fit. First off the bricks actually have 3 holes (not 2 like I originally thought). I think it was 1/2" pvc that fit best. The problem was that there wasn't enough wiggle room (shifting side to side) to squeeze the bricks together properly. I would have to place 1/4 shims in between each brick to seal it up right.
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