Use your concrete supplier as a resource. Tell them the size of your
hole, not what you calculate the amount of concrete required. Describe
to them the layout of your project. Their business is to sell concrete,
and you might be surprised to learn that your difficult access may not
be a problem to them. If you've chosen the right concrete outfit,
they'll do all this for you as a service to you. That way, if they
miscalculate, they make it right on their nickel, not yours. I learned
that the hard way when I told the concrete company how much concrete I
calculated would fill my tower hole. I miscalculated and it cost me a
redelivery charge. They'll do all that for you, and you will be
surprised what they can do. Find out, too, if they will provide the
"mix master" thing that "stirs" the concrete, all the way to the bottom
of your hole. I had to rent mine, but all that was figured out before
the concrete truck arrived. Good luck! Bruce, AA5BH
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Roger Hackler
Sent: Wednesday, April 16, 2003 12:15 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Concrete suggestions
Hey gang,
So, here's the meat of the question. I am in the process of putting up
a 50 foot Universal Aluminum Tower (50-9). I have the hole dug and it
is slightly larger than the dimensions specified by universal.
Universal specifies 4x4x4 and I'm closer to 4x4x4.5. My calculations
come up to just over 2.5 yards of concrete.
The problem is that there is no easy way to get to the hole. My front
yard is very steep, so bringing a full size truck to the back is not an
option. I haven't checked, but I imagine that pumping is prohibitively
expensive. I don't relish the idea of carting 200 bags of sacrete to
the back and mixing it.
Anyone have any ideas? This is the first tower I have erected in the
US, ant when I did the last one in HL I had the help of your tax dollars
(thanks guys!).
As a side note, I'm concerned with the specs (or lack thereof) that
universal provided. The base has no rebar in it. With a block of that
size, I think Rebar is probably a requirement. Your thoughts?
73 de KN6RO
Roger Hackler
Senior Systems Engineer
Siemens Energy & Automation
Atlanta, GA
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
any questions and ask for Sherman, W2FLA.
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