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Asphalt Shingles in Chippers

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LenB
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2003-03-06          50628


Here is a question that I have been asking a ton of guys down here and no one has a answer from experience.

I am trying to figure out how to shred asphalt shingles for ground base and have only found a machine to do it that they sell to cities for landfils. And it cost $72,000.00. Yep, a bit to much money.

So the question on the week is, "Will a 2 to 5 thousand dollar big wood chipper handle shingles? Not in the amount of a city but for my use?
I own a gun range and want to stabilize the shooting bays.

Topics of argument are, 1) They would gum up in the grinder.
2) The teeth of the grinder will dull real fast.

Thoughts: 1) Can I put a oil on the grinder to lessen the gumming or grind them in the cold weather.
2) If the teeth dull real fast, then how fast is real fast and can couldn't I just buy more grinders, if the cost is not too high?

I hope some one out there has some hands on experience trying this.

Thanks guys.

Len




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BigJohn
Join Date: Jul 2003
Posts: 4 Toronto Area, Ontario, Canada
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2003-03-06          50636


We use both big trailer type chippers and the 3 pth kind. In the spring or fall when it gets muddy the knives will not last even one day of chipping without sharpening if the branches have been dragged through the dirt on the way to the chipper. The knives in a chipper are basically just big chisels. There is another kind of machine we use for stumps, it is called a tub grinder, it is a big nasty affair that swallows stumps whole including all the dirt and rocks still included without missing a beat. It is fairly expensive though but I understand there are many people who use and rent them for land clearing and so on. Look in the yellow pages under land clearing or stump removal. ....


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Art White
Join Date: Jan 2000
Posts: 6898 Waterville New York
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2003-03-07          50693


Have a roofer that picked up one of our chippers and uses on the back of his Ford Jubilee. He has been very happy with the job it does and he's been using it for about three years. The unit he bought was a Bush-hog brand and is the same as the Goosen. ....


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Asphalt Shingles in Chippers

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pdruff iowa
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2003-03-07          50717


I have a bearcat chipper/shredder that uses swinging knives and different screens(like a hammermill for grinding feed)I have used mine to grind the shingles off of my house, I just shoveled them in the top of the unit and it processed them and made it much easier to bury. (local landfills are very pricy for construction debis and I already had the chipper) did 2 layers of shingles on a 1500 sq ft house, was several dumptruck loads.
one suggestion would to be find a good used mixer mill (like a farmer would have used) feed the shingle thru, old hammermills we used on the farm would have done the job.
just some ideas ....


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LenB
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2003-03-07          50744


Guys,
I had a good feeling that you all would have a more INFORMED opinion on what a chipper would do to shingles.
I thought it would work but all these others said it would not.

I did think that the blades or whatever might dull.
I think I need to look at that Bush Hog brand or Goosen that Art was talking about.

Art, is that a chipper that uses a tractor for power?
And do you know the model?
And finally, out of all the ones that you think might do the job, which one might be the most cost effective for several weeks worth of work only. I have NO trees so I will not need it after the project.
Thanks guys.

LenB ....


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Art White
Join Date: Jan 2000
Posts: 6898 Waterville New York
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2003-03-08          50750


The Goosen model was a CS1000pto. Bush-hog has since stopped marketing it. It is a pto drive and they do make them with a engine They build it with a 20 horse honda. I think that there are others out there that will also do the job. ....


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LenB
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2003-03-10          50882


Thank you Art.

I will go look...

LenB ....


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Jeff Earthwerks Unli
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2003-03-12          51062


I did some research on this for commercially recycling shingles, though it was purely investigational.
A tub grinder is the way to go, and a hammermill is the close second. As far gumming up that was never an issue that I heard of. Shingles are primarily wood fibers held together with asphaltic oils. I would think the shingles would process better in cold weather because they would be stiffer and more prone to shattering than limp warm ones.

Just a note about the EPA, be sure to look into seeing if you would be in violation of any laws that would cause damage to the water table or streams (the land in general). Here in Michiagan you have to have a permit to recycle shingles because of water contamination and the dust emitted from the grinding operation.
Whatever you do, be sure to have some sort of very powerful magnetic device to sort out nails and staples after the chipping cycle.


....


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LenB
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2003-03-13          51070


I called a very large local shingle manufacturer and talked to their "lab"
They told me that shingles are made up of 4 basic parts:
1) Calcium Carbonate (Natural Limestone)
2)(Granuels - Natural Ground up rock (from Arkansas in their case) with a ceramic covering
3) Fiberglass (very small amount)
4) Blown Asphalt ( a Solid made from stripping out "light organics, and oils" which makes it harder than regular asphalt on roads.

So in a small sentence, it is not as bad as road asphalt and should not polute the water any worse than shingles on your house.

Funny that they "EPA" make shingles out to be the devil.

I am thinking about doing battle with the local and state offices on me using them.

I would be happy to share what I find out. It looks like you have had the same ideas?

Thanks
Len B ....


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TomG
Join Date: Feb 2002
Posts: 5406 Upper Ottawa Valley
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2003-03-13          51076


If you don't win with the EPA and their devils, I wonder if slag might work. A friend used slag to bed interlocking stones for a patio. Slag was supposed to be more stable than sand and weeds don't grow in it. However, I don't know how well it would work without something durable on top. It was a much finer grade than is used for railroad beds and might compact pretty well.

We have to deal with our envio folks here as well. When we demolished an old house at our camp, we had to remove all tars from the structure before demolition. Roofing and siding was carted to the landfill and went in the hole. The rest of the structure also went to the landfill where we were allowed to burn it. We couldn't burn it in place without removing the tar nor could we just knock the house into the cellar and bury it--again without removing the tar.

We've got our devils here too, but I suppose the 18 tandem loads to the landfill at least made our friend the trucker reasonably happy. The township also probably was pleased since the tipage was worth about 10 years of property taxes. I'm happy somebody was happy but I'm reasonably certain that happiness is a state that eludes most enviro regulators and tax auditors. Luck with your battle.
....


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LenB
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2003-03-13          51087


Thanks Tom,

I hate to say this but after listening to all the EPA and Clean Texas people say, "We support Recycling" and then having them tell me, 'You can't do that, or that, or that also" I am starting to get the idea that only the State can recycle the things that they don't want to spend money on to dump. I mean if I get to use the shingles the city dump will loose many thousands of dollars. And the shingles will actually end up about 10 miles away from where they would be anyway.
Somehow I expect the citizens would be happy that the city dump was not being filled up with the shingles and they instead were going to a good recycling use. But we will just have to see. I expect to use them if I can get enough expects to agree that they are really not any worse in my shooting birms as they are on everyone's roofs. And darn sure not anyworse in my birms as in the city's birms at the "Non Toxic Landfill" up the street. Yep, I have been doing a little bit of research. :)

Thanks guys. If anyone else has info please, again let me know. I will share mine if anyone wants it also.

Len B. ....


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