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bluedog225
10-04-2018, 10:02 AM
Does anyone have an opinion on this stuff? My realistic choice are"regular" road base, recycled asphalt, and recycled concrete.

I like the idea of recycling concrete and it seems like it would lock together nicely. And if it is trouble, I can always top coat it with something more pleasant.

It's going down on 1200 feet of mostly clay.

Thanks

Tom

Paul Pless
10-04-2018, 10:07 AM
Itís horrible. Itís less dense than crushed limestone and doesnít stay where you put it. Nor does it have enough fines to lock it together. It will likely have metal in it.

bluedog225
10-04-2018, 10:31 AM
Glad I checked. Thanks for helping me avoid that mistake. I hadn't thought of the metal. Surprising that it lacks density. Really appreciate the help.

David G
10-04-2018, 10:34 AM
It’s horrible. It’s less dense than crushed limestone and doesn’t stay where you put it. Nor does it have enough fines to lock it together. It will likely have metal in it. Maybe it's how it's crushed? Our entire yard at Harbor Woodworks is covered with it. It doesn't pack down tight like 3/4 (-)... but it's not bad at all. Never tried it for a dedicated roadbed, though we do run trailers in and out on it, and trucks, and forklifts. But, then again, we also have portions of it covered with old conveyor belts which the forklifts like.

Canoeyawl
10-04-2018, 11:17 AM
It is horrible.
All of what was said above and the dust is powdered concrete...

It does work as aggregate for asphaltic concrete, but I wouldn't use it any other way.

bluedog225
10-04-2018, 12:05 PM
You guys rock!
Very fine and concrete advice I can cement my decision with.
Thanks all!

amish rob
10-04-2018, 12:09 PM
You guys rock! Thanks all!


Oh... I see what you did there.

Peace,
Robert

leikec
10-04-2018, 12:14 PM
Oh... I see what you did there.

Peace,
Robert

Pretty clever...at least that's the aggregate view of the forum... :D

Jeff C

amish rob
10-04-2018, 12:27 PM
Be strong Robert. Resist. You CAN walk away.

Peace,
Emperor For Life

amish rob
10-04-2018, 12:33 PM
That Emperor guy must be stoned. He gravelly misjudged me. I simply have to add to the mix. I feel, on the whole, I help hold it all together.

On the other hand, heavy gloves are required. What? Now you want to rebar me? Canít do it. Iím stuck in the mud. Wired tight, too.

Howís that float? Finished yet? Nope. We need some relief, it seams. I promise to curb this, it is getting edgy around here.

Trowel I think of more, I shall retire. I feel Iíve reached a slump.

Peace,
Take That! Stuffy Old Emperor! Ha!

oznabrag
10-04-2018, 12:56 PM
I see no problem with using recycled concrete as the first layer in a road over clay.

Use the 4-6" chunks or bigger, not the finer stuff.

Let that coarse layer mellow for a few rain cycles, drive over it a LOT after the rain (or use a skid-steer to push it into the substrate), supplement it as necessary with that same, chunky stuff to fill the voids created by that pressure, then follow with caliche (https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=2ahUKEwiD54HMre3dAhWIjFQKHXPcBuYQFjABegQICBAB&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FCalich e&usg=AOvVaw2_DYXu2-F7C6xcFZ9aL3LO) (which is NOT simply crushed limestone) in several supplemental layers (always wet the caliche as you compact it), then top it off with crushed limestone, crushed granite, or recycled asphalt.

2,200 feet of driveway is gonna set your pocketbook back a ways.

birlinn
10-04-2018, 02:13 PM
Widely used as a road base in the UK; all the old disused WW2 concrete airfield runways have been lifted for hardcore.

bluedog225
10-04-2018, 02:14 PM
Yeah. Typo, it's more like 1200, but still. And thanks.

Chris Smith porter maine
10-04-2018, 02:23 PM
Why not just use 3/4" crushed gravel?

birlinn
10-04-2018, 02:26 PM
Why not just use 3/4" crushed gravel?

Not much use as a road base!

Chris Smith porter maine
10-04-2018, 02:50 PM
Not much use as a road base!

Why not, my driveway only 400' long is nothing but 3/4" crushed, I cut the path, stumped it, removed what passed for top soil, and put in the gravel 28 years ago, since then for maintenance I have added 4 20 yard truckloads.

wudzgud
10-04-2018, 03:16 PM
If it meets the spec of class 2 base it's fine. I've never accepted a load of base without a lab report. It could be ground up anything.

oznabrag
10-05-2018, 01:02 AM
Why not, my driveway only 400' long is nothing but 3/4" crushed, I cut the path, stumped it, removed what passed for top soil, and put in the gravel 28 years ago, since then for maintenance I have added 4 20 yard truckloads.

Uhhh . . .that treatment would be lost in a sea of mud, here.

Gerarddm
10-05-2018, 01:35 AM
Speaking of which, what ever happened to the idea of using ground up recycled tires as road surfaces? On the face of it, it seemed like a promising idea.

PeterSibley
10-05-2018, 02:14 AM
I'd prefer recycled asphalt, our Shire recently surfaced our gravel/ dirt road with it and it bonds together well.