On Sat, 23 Aug 2008 10:58:19 -0500, Dave Lemper wrote:
The soil in central Texas is called Caliche with a lot of clay,
CaCO3 & shale. Attempting to drive in a ground rod
yielded only a mushroom on top & blisters on me.
Local tool rental place has concrete bits, but maximum
length of 18 inches. Possibly longer bits are available in
a larger city.
Renting a back hoe is out.
Any suggestions appreciated.
Dave WB3DWE
Seems like it was only yesterday, but it is, in fact closer to a year:
"Rick (W-A-one-R-K-T)" wrote in
news
On Sat, 04 Aug 2007 11:27:33 -0700, Chuck Olson wrote:
is there any chance you might know what brand and model number of
hammer
drill you used?
Yup, it's the Hilti TE-76-ATC.
Nobody I ever heard of... but it sure works nice.
Rick,
I see on Hilti's web site he TE-76-ATC, and its accessories include a TE-
Y driving shank and a series of adapters TP-TKS ground rod driving
adapters for different diameters.
Hilti BTW are suppliers of expensive quality tools to the construction
industry, you probably won't find their tools in home handyman stores.
The tool you rented is a little lighter than the one I used, and that is
probably why driving times were a little longer. My Hitach PH-65 machine
with home made driving adapter will drive a 16mm diameter 2.4m earth rod
into dry clay in less than a minute.
Pleased it worked for you. It is the way to go, isn't it!
The numbers above might help people looking to rent a device.
Owen
Search Google Groups using advanced search features to include Owen as
the author, and the time period of several weeks before and after the
posting above on the subject of:
"Hammer drills and ground rods, followup"
and
"Hammer drills and ground rods"
73's
Richard Clark, KB7QHC