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Old 03-03-2008, 01:25 PM   #1
nonhog
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Default Cement bag retaining wall

Anybody done it ? seen it ? where you stack bags and water them down to harden . Seems like it may be brittle ?
The bags deteriorate after so many months or you can pull them off .
sounds interesting but leary about trying it w/o some pictures .
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Old 03-03-2008, 01:29 PM   #2
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Default Re: Cement bag retaining wall

Someone did that here about 5 years ago. I haven't been by to look at it since. The bags rotted away and it looked like nice rugged, uniform stones. If I get ambitious, I'll take a picture for you....
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Old 03-03-2008, 01:59 PM   #3
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Default Re: Cement bag retaining wall

http://www.rta.nsw.gov.au/environmen...e/4302672a.jpg

More Pictures
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Old 03-03-2008, 02:09 PM   #4
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Default Re: Cement bag retaining wall

The More Pictures wouldn't open for me but the first one did.

That doesn't look half bad, but how do you ensure you get the whole thing wet enough to harden all the way thru?
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Old 03-03-2008, 02:33 PM   #5
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Default Re: Cement bag retaining wall

Try now I updated the link, or try

http://www.sciopackaging.com/general.htm
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Old 03-03-2008, 02:49 PM   #6
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Default Re: Cement bag retaining wall

Quote:
Originally Posted by carguy123 View Post
The More Pictures wouldn't open for me but the first one did.

That doesn't look half bad, but how do you ensure you get the whole thing wet enough to harden all the way thru?
X2 I don't see heavy use but I have kids and they will crawl and climb etc.
I would hate to see them crumble as they age .

That site looks good . I'll have to study that , thanks engnerdan !
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Old 03-03-2008, 03:30 PM   #7
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Default Re: Cement bag retaining wall

After a few rains they will harden all the way. We just stacked them and left them and let nature do the work.
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Old 03-03-2008, 03:45 PM   #8
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Default Re: Cement bag retaining wall

When I was building a pole barn we had a load of concrete bags in the bed the truck for the piers. Well long story short, about 4 of them got wet and within a day they were set up like a rock. I still have one of them in my scrap stone pile and I'll be damned if I can break the darn thing. I have driven over with the tractor, crunched with the loader and on and on. The only thing gonna break that sack shaped rock is a good wallop with a sledge.

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Old 03-03-2008, 04:08 PM   #9
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Default Re: Cement bag retaining wall

All the pre-mixed bags of concrete have seen lately have a poly liner so the bags will not soak up water while in storage.
If you plan to use those bags, you will have to poak holes in them to let the water in.
Or you could transfer it into burlap bags. But that sounds like a lot of work.
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Old 03-03-2008, 05:11 PM   #10
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Default Re: Cement bag retaining wall

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Originally Posted by kbs2244 View Post
All the pre-mixed bags of concrete have seen lately have a poly liner so the bags will not soak up water while in storage.
If you plan to use those bags, you will have to poak holes in them to let the water in.
Or you could transfer it into burlap bags. But that sounds like a lot of work.
That liner is very thin and doesn't safeguard against anything heavier than morning dew.
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Old 03-04-2008, 01:18 PM   #11
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Default Re: Cement bag retaining wall

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That liner is very thin and doesn't safeguard against anything heavier than morning dew.
So you just used Sak-crete then? How easy did the bags disappear??
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Old 03-04-2008, 01:23 PM   #12
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Default Re: Cement bag retaining wall

I have a couple of bags of cement in one of my garages that I never used (over bought). They have the plastic liner. After a couple of years they are now rock hard.
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Old 03-04-2008, 01:37 PM   #13
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Default Re: Cement bag retaining wall

I have seen damaged bags get hard pretty fast
But I have also seen flat bed semis with pallets of Sak-Crete rolling down the road in the rain. I doubt any savy customer would accept delivery if they were not sure the bags wouldn't harden while waiting to be bought.
But I agree with the idea. Just dry stack them and wait. The paper bags will rot and tear off in the wind and rain. (That might be a good job to keep the kids busy the second year. "Go peel the bags." Kind of like peeling sun burn.) But if you punch a few holes in the bags after they are in place, you won't have to wait as long.
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Old 03-04-2008, 02:08 PM   #14
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Default Re: Cement bag retaining wall

I don't remember how long it took for the bag to rot. Not too long. Texas sun has a way of eating things.
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Old 03-04-2008, 02:56 PM   #15
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Default Re: Cement bag retaining wall

On a road that I drive to work they used the bag concrete for a retaining walls over the culvert to the driveway. First couple of years looked okay after the bags disappeared. Ten year later most of them have been replaced with rock or concrete. Problem here is the moisture gets into the cracks, freezes, crumbles the big chunks and after a while all you have is a loose pile of cement.

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Old 03-04-2008, 03:01 PM   #16
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Default Re: Cement bag retaining wall

I am thinking you can run rebar down through the bags even......it is like desert here but a bag will go hard pretty easy
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Old 03-05-2008, 11:34 AM   #17
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Default Re: Cement bag retaining wall

When we lived in Mesquite, TX, the city used stacked cement bags to build retaining walls beneath a bridge near our house. I asked one of the city workers about driving rebar and he said they didn't think it was necessary due to the weight of the bags. It took about a year for paper to rot and left a nice looking structure.

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Old 03-13-2008, 10:53 PM   #18
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Default Re: Cement bag retaining wall

Meth-Heads stole the first few layers, of the cement-bag retaining wall(at a rental I own). Otherwise, it's looking good after maybe 30 years.
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Old 03-19-2008, 10:47 PM   #19
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Default Re: Cement bag retaining wall

Quote:
Originally Posted by Tman View Post
I am thinking you can run rebar down through the bags even......it is like desert here but a bag will go hard pretty easy
I think that would accomplish two things. One is reinforcement Second it would break the paper between the bags letting the concrete mix sticking it all together.

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Old 08-13-2012, 11:49 AM   #20
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Default Re: Cement bag retaining wall

Bringing up an oldie. I ended up going with broken concrete for my retaining wall but am once again interested in this idea as it would be so much easier
in the one area I am considering.

Anybody in the Pacific Northwest do this? Seattle/Portland ish?
Pictures? glad you did it?
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