[Elecraft] MAST HOLE FOAM FILLERS

[KENT TRIMBLE]

There are a number of polyurethane-type foam post-hole fillers on the 
market (Sika, Rainbow, Secure Set, Poly-Set, Postloc,etc.).  I would 
appreciate a brief discussion (10 replies maximum) from knowledgeable 
construction people as to what might be best for the following application.

I'm wanting to anchor a 50-foot Max-Gain Systems MK-8-HD fiberglass 
push-up mast weighing 24 pounds which will support a 5-inch plastic 
center-insulator bearing 16-gauge open-wire feed-line and ~130 feet of 
16-gauge radiator wire.

The foam will surround a 3-inch o.d. Schedule-40 PVC pipe in a 3-foot 
deep hole.

I'm prepared to further stabilize the mast above ground with T-posts.

Product-knowledgeable replies only, please, especially from utility 
company personnel who anchor utility poles with this stuff.

73,

Kent Trimble, K9ZTV
Jefferson City, Missouri




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