I suspect that it would be very difficult to remove the old foundation
with a crane. You're looking at roughly 3 cubic yards of concrete
weighing roughly 10,000 pounds (not to mention whatever drag/suction
there might be), and I can't imagine the tower base stubs being enough
to lift that sucker out of the ground even if you thought it would hold
together since it doesn't have any rebar in it. If it needs to come out
I think your only recourse is to somehow break it up ... jackhammer,
expansion goop (don't remember what it's called), or dynamite.
Good luck es 73,
Dave AB7E
On 1/17/2014 3:38 PM, Mike VE3YF wrote:
Hi:
I need to have a hole for my new tower 6' x 6' x 7.5' deep. Due to
limited lot size that I live in, and mainly to keep peace in the
family, I am looking at removing my old tower base 4' x 4' x 5' deep
and it contains no re-bar, just tower base stubs. I can't remember
what grade of concrete it is, but it is about 14 years old. I am
limited to 2 types of removal, crane and Armstrong method. The crane
company won't make any guarantee's they can complete the job due to
complications etc, and want a hefty payment up front. I am now looking
at having a young guy come by and use a Jackhammer to do the job.
Has anyone tried demolishing their old tower base and how long did it
take any problems etc. Since this undertaking is new to me I am open
to suggestions and or comments and hopefully some good suggestions.
Thanks...
73 De Mike
VE3YF
http://www.ve3yf.com/
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