drill holes, fill with what substance which expands?
not explosive. this is in a basement.
Edited 11/27/2005 7:16 am ET by foobytor
Discussion Forum
Edited 11/27/2005 7:16 am ET by foobytor
Discussion Forum
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ice
Fiamond saw scribe, wood wedges and water.......
WSJ
buy or borrow some feathers & wedges... drill your holes..... insert the F&W, tap .... tap... tap
the rock will break
here's a link to some pics...
http://forums.taunton.com/tp-breaktime/messages?msg=60276.13
mike question? do you think a slab 12" thick 16'x24' 3500 psi or a rock i'll go with igneous granite 7' diameter side to side and 4'6" height. what would be broken up easier with feather and wedges??. i have done a slab with a three or four splitting wedges and my bosch demo hammer and was successful but used a back hoe extracting the bulk. .." we judge ourselves by our motives, and others by their actions........."
i split a boulder the size you described with my 1" Dia. F&W..
we split granite , slate , and some very tough sandstone frequently..
i break up footings quite often if my digger isn't on the job
the slab would be more problematical... concrete splits don't run like rock... if i had a slab that big, i'd rent a compressor and a real jack hammer... and a young dude looking for some experience he can tell his grandkids aboutMike Smith Rhode Island : Design / Build / Repair / Restore
Thanks for all the info.
I am redoing a vacation house in the NC mtns.
Owners want to increase headroom in basement for an additional
bedroom and 1/2 bath.
Basement is essentially the side of a mountain with
granite outcroppings and a couple of stumps. floor slope down there goes from 5 to 8 foot in 12. We would have to disappear a number of very nice trees to get any
equipment in there and explosives seem to be obviously inappropriate.Thanks for taking the time to respond.
fooob..
when we built our camp on Mt. Misery in NH, the damn digger didn't get all the boulders out of the cellar..
one day, with a jack hammer and a large commercial compressor and we got them all out...
sounds like the ticket to meMike Smith Rhode Island : Design / Build / Repair / Restore
http://www.demolitiontechnologies.com/
I can't remember the name but it is expasnding grout.
I have to run now I'll seasrch for it when I get back & before the game starts
how big is the rock,
just curious, why not jackhammer?
in a basement ? is this a situation where you have boulders sticking up through the floor and you want to lower them ?
the stuff from demolition technologies ( posted above ) is what you are looking for although it may or may not work out for what you need.
the stuff is expensive and requires a lot of drilling into the rock which depending on the rock can be a bear.
my recollection is that the rock must be exposed on the sides to allow for expansion. which means digging around the rock if it is buried.
the product has its place, but it isn't a cure all.
carpenter in transition
I've been doing a lot of this lately, and have had good results with feathers and wedges. Like the other product mentioned, the rock must be unsupported in the direction you want it to split. I'm splitting a very soft sandstone, which is pretty easy. I've been using six 5/8" x 2 3/4" wedge sets and have split loose boulders up to about 18" thick and 2 to 3 feet long. For tougher stone like granite they make longer feather and wedge sets, I'd bet 3/4" x 6" would split an 18" thickness of granite. The sets I bought were about $6 apiece.
I'm also kind of wondering what you're up to. If its a bit of rock outcrop in a basement, that seems like the ultimate definition of "unfinished"!
Raw boulder in basement sounds like an opportunity for a unique and interesting finished space.