[TowerTalk] Concrete Bin Blocks for Guy Anchors

[jimlux]

On 12/15/18 3:49 PM, john at kk9a.com wrote:
> 150' of Rohn 55G tower is a pretty substantial structure and you do not want
> to skimp on one of the key components. To my knowledge there is no rebar in
> the premade blocks and I am guessing that the steel loops are designed just
> for transporting the blocks and not the thousands of pounds that can be
> created by guy cables.  Also even my 80' Rohn 55g tower has larger anchor
> slabs than one of these blocks.
> 

I've seen the 5000 pound blocks (about a cubic yard) used for anchoring 
guys on professionally erected structures, so maybe some have rebar, 
some don't.

K-rail/Jersey Barriers definitely have rebar, and are often available 
inexpensively - for a "field day" kind of op where you need it for a 
week, they're rentable.  They typically have a couple holes through them 
through which you could loop a guy anchoring sling.

20 foot K-rail is 8000 lbs. (at least the ones in Southern California.. 
they may differ by region)

A few hundred dollars each to buy them.

> John KK9A
> 
> 
> KC8HZ wrote:
> 
> I've been thinking about guy anchors for a tower I'll be putting up next
> spring. The tower will be 150 feet of Rohn 55 and it will require 3 triple
> guys.
> Instead of poured concrete for the guy anchors I've been thinking about
> using some of those Concrete Bin Blocks which are 2'x2'x4'. I'd bury them
> and attach the guy ends to the steel loops imbedded into the blocks.
> Does anyone have thoughts on them ?
> 
> RoGrrr
> Roger
> KC8HZ
> Ohio
> 
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>