Another way to go is to split the rock with feathers (also called
wedges). Check with a local quarry, stonemason, or grave marker outfit
to see if they will do it. A series of holes is drilled along the grain
(expertise needed to find it) and split steel cylinders are expanded
with the feathers. They are very hard steel with maybe a two degree
taper. The mason hits alternately each one in to the same ping tone and
eventually without any fuss the rock is cleaved into pieces that a
backhoe or backhoe with thumb can manage. Amazingly (to me) you can buy
"splitting feathers" on Amazon.
Except for the hammer drill with the carbide bit to drill the holes,
this has been done for centuries.
There is also a technique to freeze water in a line of holes, but I've
never done that, and it takes special refrigeration equipment.
Of course it is much more fun to watch the local blaster play with
dynamite, been there also, << 500' from a building. Is that a law for you?
On 1/7/2011 9:57 AM, Mickey Baker wrote:
> You just need the right equipment.
> You can find someone with an excavator and rock hammer that will make short
> work of this. The rock hammer is a hydraulic jack hammer that replaces the
> bucket on the end of the excavator/backhoe. In your part of the country,
> I'll be that most excavation contractors have one - you can rent one at
> Sunbelt Rentals in San Antonio, but it will take you some time to use it
> safely - hire a pro unless you have a lot of other holes that need digging.
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