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Crushed rock or crushed rock clay mix for driveway and ramp to garage
Just wanted to post some feedback on how the clay mix is working. It rained on the spread out mix for 2 days and I have a tamping plate and will be tamping it down tomorrow. A lot of the clay washed off the top and the gravel is showing now so I think it is going to be looking nice with time. A few areas I have already tried tamping down seem to be packing down really hard and I think will make a great temporary driveway ramp into the garages until I have a cement drive poured.
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Crushed rock or crushed rock clay mix for driveway and ramp to garage
I just put down a road gravel infront of my garage. Seems to be the ticket for the money. On the path to the house, I am topping it with washed stone this summer, tracking in the smaller particles is a pain with the pit run that is there now.
The washed stone is expensive and does not lock together as good as something with jagged edges (IMO). I will be getting about 100 yards of road gravel this summer also. My long drive is still pit run and has settled for a long time now  . Its time to improve the driveway, raise up its level a bit and put down something that will last better.
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Crushed rock or crushed rock clay mix for driveway and ramp to garage
Just a sanity check here. Our gravel driveway is about 200 feet long. It is in good shape with no potholes or drainage problems but the top layer of gravel is pretty much gone. The original gravel looked to be pretty smooth stones. I was planning on putting a new top layer down this spring. It sounds like the crusher run is the way to go. Is that how it's commonly referred to? What do I order, 1" and smaller crusher run? Is 1" too small?
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Crushed rock or crushed rock clay mix for driveway and ramp to garage
Ken, I am REAL happy with how the crushed rock/clay mix has worked. It packed down real hard and does not wash now that it has dried. My neighbor has been using it for the driveway to his horse barn and it holds up well there too. We have driven his Ford F-700 dump truck loaded with 9 tons of gravel mix on it and it holds up very well. It does not continue to spread out like the crusher run does. If you can get this in rock/clay mix in your area; I would strongly recommend it.
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Crushed rock or crushed rock clay mix for driveway and ramp to garage
Thanks, Randy. How do you think it would hold up with 50 inches of rain a year?
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Crushed rock or crushed rock clay mix for driveway and ramp to garage
Ken, you might take a look at Harvey's 2-22 post on this subject. He pretty much covered what you are looking for except I would go for 1 inch to 11/2 inch maximum. Just make sure it is uniformly graded which means it has been crushed so it has different size rock from the maximum down to the fines. As Harvey mentioned, the fines or the binder material is usually a clay material that passes the 200 sieve (smallest sieve that is usually used). You need about 10% to bind it but not much more or it will be crappy when it rains. In your part of country the more durable rock is crushed out of the river bars (if you can find it close by)rather rock quarries because a lot of the rock in the Coast range is marine basalt which will break down when exposed to water. I know all about your rain since I lived outside of Vancouver for 30+ years. I'd still be there if it wasn't for all those cloudy days from Nov. to April.
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Crushed rock or crushed rock clay mix for driveway and ramp to garage
Ken, I was thinking the same thing about rain before I put it down. After we spread it out and it set up and dried; it rained on it for nearly 3 days and all that washed was just the clay residue on the stone in the mix. I wish I had used this mix on my driveway at my previous house.
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Crushed rock or crushed rock clay mix for driveway and ramp to garage
Thanks, guys. Harvey's post confused me a bit. By -200 did he mean 2 inch minus (two inch and smaller)? I'll call around and see what's available.
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Crushed rock or crushed rock clay mix for driveway and ramp to garage
-200 material means all the material that will pass through a no. 200 sieve. A no. 200 sieve means there are 200 openings per square inch. Some people refer to it as the P200 material with the P standing for passing through a 200 sieve. Clay in a dry state and puliverized will pass through the 200 screen. In comparison sand is material that passes though a no. 10 sieve (10 openings per sq inch) but will not pass through the 200 sieve). Part of -200 mateial comes from clay that is stuck to the larger rock when it is fed in to the crusher. Sometimes it is additional clayey material fed in with the rock. It can be a problem getting it added in if it is too wet (clay balls).
When calling around just ask if their driveway material has any minus 200 material for binding the material together so it will set up and not be just loose rock. Again you do not want more than about 10% or it will be muddy when it gets wet.
Usually most driveway surface rock is 1 inch minus or 3/4 inch minus. 1 inch minus means every thing will pass 1 inch by 1 inch sieve. 3/4 inch minus means all the rock will pass a 3/4 inch by 3/4inch sieve. It also should be uniformly graded which means it has different sizes from the larger down to smaller and a little bit of the P200 to bind or cement it together.
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Crushed rock or crushed rock clay mix for driveway and ramp to garage
Thanks much for the detailed information, that clears up a lot of confusion. I'll still sound like an idiot when ordering but at least now I know what the terminology means.
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02-24-2006, 09:43 
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