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30x70x14 build... finally!

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BlueBomber

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Sep 14, 2013
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Congrats on starting your build, Racer X! It's always exciting to see a space you envisioned in your head come into existence.

BTW, there's a specific forum on GJ for showing off garage builds called Garage Gallery. Maybe one of the Moderators can move this thread there. Not a big deal either way, though--keep posting pictures of your build progress since last October. Good luck!
 

38Chevy454

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Good start, sometimes all that planning and preparation seems to take forever. It's always nice to see the concrete work done so the building construction can start.
 

BlueBomber

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Thanks!

Did not know folks were putting the builds in the gallery... I have seen a lot of them in this forum, and there is another current Texas build thread in here at the moment...

As I said, no worries. One of the things I like about this site is the low level of OCD about what posts where. Looking forward to watching your progress!
 

jpmmilner

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Dec 21, 2014
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Subscribed! Wistfully hoping this can become a reality for me here in NW Arkansas.


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850xpeps

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Really thats interesting, does that pretty much the case for a patio as well? Sorry not trying to hijack the thread.



A patio should at least have a mesh in it. It will help it stay together. Maybe if your where the ground don’t move at all it might be ok. But bar or mesh is cheap. Why not use it.


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BlueBomber

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The OP noted in post #6 that the concrete guys made a critical mistake. I'm thinking it was the lack of rebar.

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850xpeps

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Yes, but it was not lack of reinforcements...



It is difficult to see in the video because of the black plastic but there is large diameter mesh in the interior, and the perimeter beams are quite thick, 24+ inches with rebar boxing. There are also beams across the middle, but it is just thicker concrete with the same mesh as the interior. No rebar in the interior beams. They pulled the mesh up as they went along so it would not be just at the bottom of the slab.



The concrete is 4000psi mix and I do not anticipate any problems with it with respect to reinforcing.



The mistake they made is something else and I will get to that soon when I have a chance to post the next round of updates and pictures.



You believe that mesh stayed up in the center of the slab? And didn’t get pushed down while they raked and screeded? We’ve done pours like that with rebar to save on a pump truck. It’s hard to keep it up. Must chair it and even the. The chairs break.


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850xpeps

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I don't know what it did... All I know is I witnessed them making efforts to keep it up. There is a limit to how much you can do and still get the job done. Like you said though, if you want high confidence that the reinforcing steel is still in the center after the pour go with rebar on chairs and a pump truck. That would be awesome but for this residential project that is a level of engineering that does not justify it's cost. Part of the compromises I spoke of in the first post.



Will it crack? maybe, but that is a gamble you take with any concrete slab no matter what you do.



At the end of the day I am parking cars and a Dodge 2500 on this... not Cat D11s or 747s.

I’d disagree with there is a limit to how much you can do and still get the job done. That might be fine on say a rougher finish on the slab but an important part of the slab like reinforcing steel I would disagree. In the end it’s your slab and if your happy that’s all that matters.

A pump truck up here would have been roughly a $1300cad for a pour that size. Up here anyway. Not sure prices where you are. Seems like a small amount to add to a 2100 sq ft building.

It’s a gamble crossing the street and not getting hit but it makes sense to limit the risk by looking both ways.

Hopefully all is good and you have no issues. Looking forward to the rest of the build.


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