Because it is not always possible to dig the exact size holes due to
soil types. Up here if you tried to dig a 4' deep 3'x3' hole for a base
it would collapse from the bottom up as the hole filled with water. You
must dig the hole larger then required and use forms.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> -----Original Message-----
> From: Joe Simpkins [mailto:K4MD@carolina.rr.com]
> Sent: Monday, June 30, 2003 01:07
> To: AR Cluster Submit
> Subject: [ar-cluster] Re:[TowerTalk] Using plywood forms
>
> Why would anyone want to use a form below grade on a properly dug
hole? I
> would want the concrete to flow to the firm earth inside the hole.
Hint
> here
> is don't dig the hole with a sloppy shovel, mechanized or manual. The
> rotting barrier above grade is easily removed as desired, but if left
in
> place keeps the lawnmower from chipping your fine cement pouring job,
> gives
> you a nice way to level the poured base, and keeps you from having to
do
> all
> that tamping work later.
>
> Joe K4MD
>
>
>
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