using concrete washout for a polebarn pad base

[cyamaha2007]

I need to bring the rear of my lot up 18 in. I was searching for cheap fill and i found concrete washout. The plant owner will deliver it for damn near free. I still plan on setting the post deep enough to hit virgin soil. My excavating friend assures me this is ok since he will compact it in small layers with his hilift. Thanks again.

 

[cyamaha2007]

any ideas??

 

[Daniel Dudley]

Sounds like a deal to me.

 

[jimp]

Used it for my first shop fill. Almost 24" in places, was never sorry that I used it. It made a very good base.

 

[cyamaha2007]

jimp what did you pack it with? Did you bring clean in before pouring on top of it? I plan on piering the floor in a few spots to help with settling. I have a ton of quickcrete and am going to put about 8 piers down to virgin soil before i do the slab pour.

 

[zeebad1]

A local ready mix plant had a bunch of this to get rid of, and hauled it to my place for free.

I didn't keep track, but there must have been close to 20 tandem loads.

It's at least 4' deep in places. I just leveled it off with the skidloader, as they hauled it in.
It was nice & damp, so it compacted very well.

We did finish grade with clean chips.

56' X 30' pad with no cracks. It made for a very stable base.

 

[RivennHewn]

Don't let it set for too long before digging your post/piers.

Once it sets up, it acts alot like poured concrete.

 

[jimp]

jimp what did you pack it with? Did you bring clean in before pouring on top of it? I plan on piering the floor in a few spots to help with settling. I have a ton of quickcrete and am going to put about 8 piers down to virgin soil before i do the slab pour.

I used it for fill inside my stem walls. So the foundation (including piers)were in place before I filled the slab area.

I did not think about the need to compact beyond the skidstear placing it, since it filled so well( It was about like the crush run, a lot of fines). I did all the work myself, so, there was about 3 weeks between placing the fill and pouring concrete, that and a couple rains set the fill up like concrete.

I did not use anything else, sand or gravel, before the pour. I did not have any floor cracks outside the control joints (floor was cut into 16'X12' sections and had #4 on 12" centers).

If your fill is like what I got, I would not see a need do anything but pour the concrete on top if you take care in placing.

 

[stump615]

I think I'm gonna use some of the washout,I have gradual drop going to 2ft on far corner,sounds like it works pretty good- will compact as spread out

 

[zporta]

I would use it everywhere except where you need to dig the holes. Compact it with a jumping jack tamper, you could use a plate tamper for your last lift to smooth it out the best. Then after your dig your poles and set them you can backfill with gravel or more washout

 

[stump615]

I think I'm gonna use some of the washout,I have gradual drop going to 2ft on far corner,sounds like it works pretty good- will compact as spread out

 

[6768rogues]

A friend built a 40x60 barn on similar material. It is about 12 years old and has held up well. We did compact it well with a vibrating plate tamper.

 

[Fastback]

I used it for a base on my floor, works well.

My cousin used it for his driveway, he owns dump trucks and drives on his a lot, and it will not rut even when wet. After a while it kinda turned into a hard surface with all that weight on it.

 

[bobscogin]

Makes an excellent base material. One thing you may want to consider is that it can have a very high ph (high alkalinity), so if you have any trees or vegetation that you want to keep avoid putting it near them.

Bob

 

[stump615]

Thx for the good feedback on this washout was kinda unsure about it.