At Home In The Woods

[razvy]

The job is done and it looks excellent , Congarats!
Now , the wire mesh it helps , is not question about, even if it's 1/2" in the concrete it's fine, and I know what I am talking , just think physics the slab has the tendency of sagging , where is more force of separation? bottom , middle or top ? If your answer was bottom you are right ,,and where is the mesh ?
I seen jobs done professionally and they end up whit cracks , take a look at the Home Depot floors . I just pored my slab for may house exactly the same way, and it.s fine , I have few cracks and I don't think about, ..don't we all have one ｿ

 

[razvy]

That's my concrete job , done it alone ..:

 

[CurlyDave]

Whats done is done, but I will guarantee that if you cut a core from that slab, you will find the wire on the bottom. The very same guys who "pull it up" step on it and push it back down to the bottom. Try it for yourself. Stand on a piece of wire mesh and pull it up. The part under your feet will not come up.

I agree with Eddie.

I have never used chairs for wire, the item to use is called dobies (dough-bees) singular dobie.

They are cubes of concrete 1", 1 1/2" or 2" along one side, with a piece of tie wire (two ends) on one face.

 

[EddieWalker]

I got a private message from a member here who explained that guys who do wall work, don't do flat work. I've never done a basement, and didn't know this about concrete subs.

Eddie

 

[JB4310]

I have never used chairs for wire, the item to use is called dobies (dough-bees) singular dobie.

They are cubes of concrete 1", 1 1/2" or 2" along one side, with a piece of tie wire (two ends) on one face.

Not to be a wise guy but we just call them bricks (preferably cement)
Again, like I mentioned in another thread, try demoing a concrete slab that has mesh in it in any position. It does what it's supposed to do and that is to prevent separation at the cracks, it's not structural like re-bar.

And yeah the two concrete contractors have very different disciplines, Flat work is more a skilled trade, form work is more bull work, both are highly specialized though.

 

[tommu56]

Way off topic but does any one else subscribe to this thread via email?

If so do you get multiple postings in the same email?

I'm not complaining but there must be a glitch in the software some were.

I get the same posting multiple times one i stopped counting at 8 again this is in the one email up date from the forum.

tom

 

[ruralruss]

It seams to me that if the wire is hard to pull up it would be impossible to push it down. The gravel will spread when you pull the wire up because it is unconstrained on top. As the wire comes up the gravel will fill in. The gravel will not spread as easily when you push down because is constrained by the ground.

I think it will be just fine.

Russ

 

[brin]

That's my concrete job , done it alone ..:

Wow - that is a great job and you did it alone...be proud !

 

[brin]

Obed - Did you put down a plastic vapor barrier before they poured your slab ? I hope so since that control moisure which can lead to mold and it may prevent radon as well but it sure does reduce dampness in the structure.

 

[dave1949]

I have never used chairs for wire, the item to use is called dobies (dough-bees) singular dobie.

They are cubes of concrete 1", 1 1/2" or 2" along one side, with a piece of tie wire (two ends) on one face.

The wire ties would be handy to keep the dobies in place. Some wired in dobies may not even be touching the stones with wire mesh being what it is. I'm sure the concrete would drive them down once some weight gets on the top of the dobie.

I think that would be the advantage of dobies over chunks of brick or concrete block.

I have to agree with Eddie, once the concrete starts flowing it is fairly difficult to tell what's going on within it. And the workers have to walk on it/through it. You really need plenty of people to do a good job.
Dave.