>From a guy with a hundred years supervising concrete work, this guy is dead
on. EXACTLY as he said.
----- Original Message -----
From: "Dino Darling" <k6rix@earthlink.net>
To: <TowerTalk@contesting.com>
Sent: Wednesday, December 03, 2003 9:16 PM
Subject: Re: [TowerTalk] RE: Erecting tower
> For those who may not know....
>
> I wanted to point out what vibrating concrete does. It PECULATES the air
> pockets or VOIDS out of the pour (see below). Voids will cause weak spots
> in the base! If you OVER-VIBRATE the pour, the aggregate (rocks) will
sink
> to the bottom of the pour and you lose the STRENGTH those rocks
> provide. Don't pour the entire base and then vibrate. Vibrate as you
> go! It tough for air to work its way up 6' of concrete if its thick (low
> slump). When you see no more bubbles coming up, STOP! Plunge the
vibrator
> in and out of the pour as you go.
>
> Also, don't let the head come out of the pour or you'll have concrete
> splashed EVERYWHERE! Its like a mixer coming out of cake mix!
>
> >Remember to have a crew member move around the concrete as it's being
> >poured or rent an electric vibrator to remove the air pockets that may
> >develop as the concrete tries to flow around the tower braces. Don't
over
> >vibrate it though.
>
> Dino...k6rix@earthlink.net
>
>
> _______________________________________________
>
> 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.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
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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