Crusher run=recycled concrete?????

[Cobra5150]

My shed is ready for delivery and the guy I was talking to quoted $850 for #57 and $450 for crusher/run. He then says the C/R is recycled concrete. Is this OK or go with the 57?
I always thought the C/R was the last bits left after grinding.

 

[PCustoms]

My shed is ready for delivery and the guy I was talking to quoted $850 for #57 and $450 for crusher/run. He then says the C/R is recycled concrete. Is this OK or go with the 57?
I always thought the C/R was the last bits left after grinding.

I think the term is used differently depending on region.

I'm assuming this is a small shed on skids (no details were given), so more then likely any sort of permeable gravel/rock/concrete that will compact (hold together ) is fine

Google Search

 

[racecougar]

Uh, "crusher run" is stone (limestone here in MO), not recycled concrete.

Is this a garden shed, or something going on a pad or foundation?

 

[yelchevelle]

I consider crusher run as 3/4 minus, but they sell it different ways. 8910 is like either 3/8 or 1/4 minus i think. I have a place that sells concrete, and they screen out the 3/4” material and sell it separately from the dust (8910). Anything that has the dust(8910’s)that is going to be a foundation or base layer should be compacted. 57 stone should get you 90-95% compaction right off the truck, hope this is helpful

 

[Fixr]

Around here crusher run is stone with all of the fines from about 3/4" on down to dust.

 

[finn]

Not specifically about recycled concrete, but I was talking to the landscape contractor who was installing pavers at the house a couple weeks ago. We’re in the extreme North of the UP, he was originally from Southeast Michigan, ie Metro Detroit..

He rattled off three names for what we refer to as CMR, or Crushed Mine Rock. Each term is predominant in different parts of the state, but describes essentially the same product. You really have to talk to your local material supplier to understand the lingo in your own area.

I had the same discussion with the pit Forman about a different product maybe five years ago.

 

[PCustoms]

Around here crusher run is stone with all of the fines from about 3/4" on down to dust.

Yep

Sometimes it's limestone, sometimes granite and apparently in this case recycled concrete.

Aggregate is put in the crusher, smashed down to a certain size and you get everything down to the dust

 

[kwb]

Recycled concrete can be a great base material. Watch for leftover bits of wire mesh.
It packs well but finished appearances isn't as good as actual crushed rock. I have used it and then topped with a small amount 5/8minus.

 

[Cobra5150]

Yep, it's a 12x20 garage on skids. I think I'll spend the extra $400 and get actual stone. The guy is delivering some C/R close by but I will go by and check it out just to see.

 

[firebirdparts]

Crusher run packs down well because it's not sorted to size. As a result, it has a small void fraction. Good base to pack down. That's what it's for. It doesn't have anything to do with recycled concrete.

FWIW I wouldn't want to pay extra for 57. There might be some reason why that would be better for you, I guess. Might be better on a slope.

 

[Cobra5150]

This is what he’s been getting lately. Looks like something that’ll just mix in and make a big mess

 

[racecougar]

That looks like it's nearly all fines.

 

[Cobra5150]

Looks like a big pile of dust to me

 

[FTG-05]

Recycled concrete can be a great base material. Watch for leftover bits of wire mesh.
It packs well but finished appearances isn't as good as actual crushed rock. I have used it and then topped with a small amount 5/8minus.

My rock guy won't lay down recycled concrete on roads anymore. Too much of this:






Recycled concrete was put on part of my one-mile gravel road in 2019. Those pics above were taken April 2025.

 

[NUTTSGT]

That looks like it's nearly all fines.

That was my first thought. I would pass on that.

However, if I was using larger stone, I would have no issue spreading that stuff around, tamping, wetting, tamping to fill voids. But that's not what you are trying to do.

 

[Cobra5150]

Got the load of 57s this afternoon. Tomorrow skid steer is being delivered and building setup Monday.

Also got some “stones” for some landscaping for Mrs C.

 

[NUTTSGT]

Looks like progress is being made.

 

[jblnut]

Around here the “crusher run” product like you pictured is just about given away from the only local guy that crushes waste concrete. Basically you’re paying for the hauling. I’ve gone with my dump truck a bunch of times to pick it up and give them around $4/yd. I like to put it on muddy field roads where it mixes in and packs decently with just farm machine traffic.

Not what I’d use under a shed though. Good call of getting actual stone !!

 

[Cobra5150]

Looks like progress is being made.

Maybe I should change this thread title or start a new one once it is delivered.

 

[sgrammel]

Got the load of 57s this afternoon. Tomorrow skid steer is being delivered and building setup Monday.

Also got some “stones” for some landscaping for Mrs C.

The small pic of the 'stones' at first glance looked like some 'product' Tony Montana would have..

 

[Cobra5150]

The small pic of the 'stones' at first glance looked like some 'product' Tony Montana would have..

I can see that now

 

[NUTTSGT]

Maybe I should change this thread title or start a new one once it is delivered.

You can do either if you choose to. If you can't get the title edited, send me a PM and I would be happy to help with it.

 

[abfish]

A few comments on crushed concrete: If the crushing is done properly, the material will pass DOT specs for ABC (Aggregate Base Course or crusher run). That means it has the right gradation of fines and larger pieces to compact properly. We built some subdivision streets 10 years ago with crushed concrete and they're in perfect condition today.

We did get a couple of flats from rewire that was in the concrete. The crusher has a magnetic separator but it's not perfect. Once the guys on the ground with shovels started looking for wire, we had no more issues.

I agree with your use of #57 regardless.

 

[Mike65]

When we got our shed it was built on skids. We made a boarder from PT 4x4's pinned to the ground with rebar, laid weed block & a layer of river rock. The shed was the site built on the rock.

 

[Renegade1LI]

The local crusher run around here is all stone, 3/4 minus & packs real well. I put down 6" cr & then topped with a couple inches of 3/4 works out great, no weeds. The cr makes a great subase as it compacts so well & adding 3/4 on top locks in well & gives a clean surface & can always place concrete on top.

 

[Renegade1LI]

Pad i did for our pontoon boat storage, going on third year and have had zero problems.

 

[finn]

I brought several loads of crushed concrete for my driveway with my little 3 yard dump truck about a dozen years ago. At the time the pit master said some people didn’t like it because of the white color.

It’s still holding its own, but could use a fresh topping.

Interesting, the color has morphed to regular gravel color over the years for the most part.