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Our general contractor charged us extra for chainlink fence that he bought at our request to embed in the cement floor when poured because we have had problems with groundhogs digging through the old cement floor in the barn and garage. Now I'm hearing that all cement floors are supposed to have a wire mesh in them anyway. So, that is the typical thing? This is for an addition to a home with a 2' 2" crawlspace. What is the story here? (We've already gotten screwed by this contractor. I'm just wondering if we are even more screwed than we thought.)
 

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I should add...he said we didn't need wire in the concrete at all but if we really wanted it he could use chicken wire. But we insisted on something really tough and he decided on chainlink.
 

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imo, you did get sc***ed :yes: i would've picked the vinyl-coated chain link so it wouldn't rust & stain the conc from the inside out :laughing: had you used 5,0000psi conc, that would've been waterproof according to aci,,,
the fact he didn't try to talk you our of the wire is testament to his good sense even tho there is welded-wire mesh specifically made for concrete probably at 20% of the price you paid however YOU ordered the chain link,,, next time be quiet & listen to him.

wire mesh ONLY adds strength while the conc's in tension as it cures,,, once cured, it holds broken pieces together,,, we rarely use it unless our engineer's insistent - usually they'll listen to reason,,, we prefer to cut jnts properly so it won't randomly crack.


since you have such aggressive woodchucks, the higher-than-normal strength conc would've also been a deterrent to their intrusive behavior :laughing:

ps - he ws right - you didn't need wire :thumbup: stop watching tv,,, did you REALLY think woodchucks can chew thru conc ? ? ? howzabout garlic nectar [ ONLY IN GLASS JARS ] for the vampires ? ? ? or was that for the were-wolves ? ? ? my bride, nagzilla, informs me that its some kind of root,,, thanks for the laugh - needed something like that this afternoon :whistling2:
 

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I have seen varmits work their way up though concrete that was thin, broken and badly deteriorating. But not through sound concrete - any varmit that could do would scare the heck out of me! :eek:
 

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Ha! Don't know what to tell you. We've been trapping and poisoning woodchucks who have very active holes in the barn and garage concrete. Sure, it is OLD concrete, and maybe that is why it was easier for them. We've lived here since 1975 and it is an annual war ... us and the woodchucks. All the farmers around here say the same...don't let them near your foundation. We thought we'd try some preventative measures, especially since one of their long established runs went through the place the addition was built. Apparently they were thwarted because the next season they added a new hole in the flower garden nearby and in the yard nearby. I should take pics of the concrete and figure out how to show you. I swear I 'm not out of my mind. We have three live traps and they have significantly bent the wires when trying to get out...really tough teeth!

By the way...we don't watch TV, never have had one, so that can't be blamed. :wink:
 

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Oh, and actually, HE ordered the chainlink. WE didn't. Welded wire mesh would have suited us just fine. But he said he was going to use chicken wire at first (see above) and that didn't seem right to us so we insisted on something more substantial. We didn't say what (not knowing), and he said he'd "find something good" and bought chainlink. Had he brought welded wire, that would have been just great. I don't know why he didn't think of welded wire. It is certainly more substantial than chicken wire. If we had known about welded wire we would have asked for that. But we only knew we didn't want chicken wire and didn't know what other alternatives there were for concrete. We trusted him to know that stuff.
 

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Yeah - chain link moves, so not sure how well that will work
Need a concrete person for input
they aren't using it for concrete reinforcement. They are using it for a barrier to the chucks. I suspect it will be quite successful at that.

I'll leave the need for reinforcement such as welded wire or poly to the pro's.
 

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Ah, well in that case you can always PU old chain link off criagslist for free
I'd never pay for new stuff simply to bury it under concrete
 

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Wire mesh is not absolutely necessary. they don't normally use it in garages(house). That's what the cuts in the floor are for. for something like a basement I would want to use itbut if your talking about a concrete floor in a crawl space I wouldn' worry about it. Unless the mesh is real close to the surface I wouldn't worry aout rust. There are never that many problems with mesh and rebar which can both rust.
 

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that part about rusting inside-out was also tongue-in-cheek, too, joel :whistling2: still wouldda pick'd 3,500psi conc @ 4" slump,,, as mention'd earlier, mesh wasn't/isn't for strength but ' 'chuck barrier ',,, at least the contractor didn't suggest stainless-steel mesh for any addl profits :laughing: btw, rebar doesn't add compressive strength to conc.

could those intruders be badgers ? ? ?
 

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Oh man…"chainlink moves". I didn’t think of that. (Of course) I think we all agree that concrete is more susceptible to problems as it ages. So right off the bat we are ok. But years down the road when the concrete is older that we have the potential problem. If it does start to break and then the pieces aren’t held together by the wire because it moves…ugh… that is a discomforting thought. The general contractor said one of the reasons he chose chainlink for the job was because it lays nice and flat and the concrete guys wouldn't have problems with it poking through. I wish we could have talked to the actual concrete installer about all this but we have no idea who that was.


It’s a crawlspace and there are no joints in the floor…it’s just one big cap sort of thing about 352 sq. ft. I don’t know how thick they poured it.

And no…I’m 100% positive…not badgers. Just evil house-barn-garage-hogging woodchucks, or groundhogs or FOUNDATION hogs. (mutter: evil creatures)

nap: Your pic is cracking me up! :thumbup:
 

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we haven't even address'd conc's ' flexural strength ',,, IF the wtr/cement ratio was correct, you won't have any trouble w/strength,,, conc's more likely to become brittle as it ages only 'cause it was placed incorrectly at the start,,, i don't think the gc's a conc guy but, still, we're only talkin' BASIC stuff.

NEVER heard of anyone using chainlink for ANY wiremesh reason but i can imagine a h/o picking it up out of a dumpster,,, think that's a good idea, too !

no jnts is a VERY BAD thing but don't worry as the conc'll make its own thru random cracking,,, not good,,, someone has no idea how to place &/or jnt conc,,, the conc gawds will NOT be happy :censored:
 
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