An 80 lb bag is rated at 1/2 cubic ft. 27 cu ft=yd = 54 bags/per yard.
Home depot 2.38 I think for the cheap stuff per bag = 128.54 plus tax and a
lot of work. Probably cheaper to have the readymix truck come out and a
whole lot easier.
73, de Jim KG0KP
----- Original Message -----
From: "Alan NV8A (ex. AB2OS)" <firstname.lastname@example.org>
To: "towertalk reflector" <email@example.com>
Sent: Tuesday, August 24, 2004 8:19 AM
Subject: [TowerTalk] Mixing your own concrete?
> The spec. for the foundation for the tower I intend to put up (AN
> Wireless 60' Light Duty) at this location (80mph winds) calls for close
> to 10 cu. yds. of 4000lb concrete.
> How many bags of premixed concrete is that? (They are sold by weight
> rather than by finished volume). Is the stuff in bags up to that
> strength, and is it possible to mix that quantity quickly enough (even
> with an electric- or gasoline-powered mixer) to avoid having the
> first-poured stuff set already before the last lot is mixed and placed?
> I've worked in testing laboratories for construction projects, and I
> know how important it is for concrete to be poured within a certain
> period of time, or for the structure to be designed for discontinuous
> Alan NV8A
> 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
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