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| plowboy1
02-09-2013 21:21:26
50.75.25.224
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Years ago we use to burn the bigger rock (boulders) to get them cracked into smaller pieces. Built big piles of brush around them. There use to be torches for burning rock, i think they used diesel for fuel. Does anyone know if one of these large propane torches will get hot enough to crack a big (4' or 5' dia.) rock?
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| Ken Macfarlane
02-12-2013 07:19:42
142.166.168.2
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Re: cracking rock in reply to plowboy1, 02-09-2013 21:21:26
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| Only certain types of rock break well from heating/cooling. We have some cracking compound (Bentonite) we use after drilling but its slow, you have to wait a day. In hayfields if its big enough to need cracking I've taken to drilling and jackhammering off the top 12" then fill back in over top. The really big ones don't heave nearly as bad as the ones you can drag out.
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| plowboy1
02-11-2013 17:40:36
50.75.25.224
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Re: cracking rock in reply to plowboy1, 02-09-2013 21:21:26
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| Thank you all for the ideas. I have looked into the chemical crackers and hope to try them someday. I just figured those torches are pretty handy. Maybe i'll just give it a try for the fun!
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| Angle Iron
02-10-2013 15:43:00
216.186.149.215
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Re: cracking rock in reply to plowboy1, 02-09-2013 21:21:26
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| Hammerdrill feathers and wedges.
Angle Iron
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| Larry NEIL
02-10-2013 09:25:36
76.202.219.140
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Re: cracking rock in reply to plowboy1, 02-09-2013 21:21:26
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| Just what wayne in TX said. there are a number of chemical solutions available just for that,
Drill holes and pour it in, or if in a colder climate, drill and fill with water.
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| Justin SE IOWA
02-10-2013 08:58:57
166.181.83.16
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Re: cracking rock in reply to plowboy1, 02-09-2013 21:21:26
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| Plowboy where are you located? I might be interested in taking that rock out of your way
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| plowboy1
02-11-2013 17:37:49
50.75.25.224
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Re: cracking rock in reply to Justin SE IOWA, 02-10-2013 08:58:57
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| We're over in Mass.. Quite away to carry a rock that maybe weighs about 20 ton. ..... But your welcome to it!
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| JRSutton
02-15-2013 04:20:41
75.130.109.233
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Re: cracking rock in reply to plowboy1, 02-11-2013 17:37:49
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| | drill a few holes and fill them with water - they'll freeze and expand. Where in mass plowboy? Sutton here.
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| WAYNE-N-TX
02-10-2013 05:56:50
4.225.171.62
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Re: cracking rock in reply to plowboy1, 02-09-2013 21:21:26
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| http://crackamite.in/
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| Dick2
02-10-2013 05:28:13
174.19.205.113
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Re: cracking rock in reply to plowboy1, 02-09-2013 21:21:26
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| We built a large fire around a big granite rock once. When it finally burned down,the rock had not cracked anywhere. We threw a few bucket of cold water on the rock but that didn't cause any cracking either. We finally dozed out a deep hole and buried it.
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| Bret4207
02-10-2013 05:08:45
64.19.90.196
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Re: cracking rock in reply to plowboy1, 02-09-2013 21:21:26
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| I imagine if you used a couple or 3 of them it would but it would be expensive. I'd use the brush pile method.
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| Leroy
02-10-2013 05:00:46
69.88.205.38
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Re: cracking rock in reply to plowboy1, 02-09-2013 21:21:26
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| Never heard of anything like that.
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| KEH
02-10-2013 14:51:18
209.213.19.196
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Re: cracking rock in reply to Leroy, 02-10-2013 05:00:46
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I was told this by an old man many years ago. There was an old grist mill on a river. To make a channel through rock to carry water tothe mill, they first blocked the river off the proposed route across the rock. They then put a lot of wood on the route burned it most of a day. They had a low dam across the river. After the fire was out they turned the water onto the hot rock which washed a lot of rock chips away. Don't know how often they repeated the process.KEH
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