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[TowerTalk] Base for Delhi 48' Free-standing Tower

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Subject: [TowerTalk] Base for Delhi 48' Free-standing Tower
From: gdaught6@leland.Stanford.EDU (gdaught6@leland.Stanford.EDU)
Date: Fri, 27 Aug 1999 12:06:12 +0000

Carl, VE9OV, wrote...

> I am about to pour about 5 cu yds of concrete into a roughly 5'x5'x5.5' deep
> hole dug by hand in gravel soil, thus making it impossible to have the sides
> smooth vertically. The bottom is bellowed out rather roughly. I would rather
> not have to put in forms for the concrete. In your learned opinions, would
> it be dangerous to just pour the concrete into the hole, over the rebar
> cage.

Having just gone through this exercise, my installation instructions 
expressly PROHIBIT forms.  They specified a pour of a minimum size 
with walls of undisturbed soil.

> Would a base poured thusly sustain a  free-standing tower of 48' with a
> TH5DX on top without going out of plumb with time. The frost goes down about
> 3' to 4' depending upon the severity of the winters. Located in
> south-eastern New Brunswick right next to Maine. Your opinions would be much
> appreciated.

Follow the K7LXC prime directive... do what the manufacturer says.  

George T. Daughters, K6GT

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