Has anyone used expanding polyurethane foam to set a tower base with? I watched a you tube video from a company called Secure Set Products that installed a rohn 45 tower with it. They then used a crane to pull the tower tip 6 foot past plumb, which was more than spec called for. It held up fine with no movement in the base. I was considering using this product to put up a 50 foot rohn 45 tower. I dont know if it will hold up as long as concrete but the video looked promising.
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Setting Tower base with EPF
- Thread starter 3strucking
- Start date
Thats a pretty interesting video there. If it does work save lots of time and effort. I could see where in a situation not getting a concrete truck to the tower base this would be ideal.
No way I would do it. I have seen that expanding foam used on fence posts, and it is no where near as strong as concrete. It WILL deteriorate over time and guess what happens then.
I put 5 yards of concrete in the foundation of my 45g tower and am satisfied with that. I haven't saw that stuff before this post. I am just saying if works it would be a good deal lol.
We occasionally use pole foam at work. We use 2 part Rainbow brand. It's very impressive for what it is. If you attempt to pull a foamed pole it will break off at the ground..guaranteed. It's not something we use everyday but it has its place. Same hole setting or straightening or if your limited on backfill dirt/rock. Something that should maybe have a down guy that engineering doesn't think you need...etc
2 tips: Keep it in the cab of your truck in the winter to speed curing. DO NOT get it on your clothes when mixing.. trust me.
This is a video I found from another manufacturer showing its strength.
I would still prefer my towers in concrete.. just saying
2 tips: Keep it in the cab of your truck in the winter to speed curing. DO NOT get it on your clothes when mixing.. trust me.
This is a video I found from another manufacturer showing its strength.
I would still prefer my towers in concrete.. just saying
I am seeing it used for setting/holding direct burial light poles on commercial jobs. Usually enough to hold the tapered poles plumb then they backfill with crushed stone.
I go through 2 or 3 5 gallon buckets of each base and 2lb activator per year filling the shells we have our antenna elements in, and once it expands, sets up and hardens, it is impervious to most solvents. I used some today, in fact.
The expand-a-foam can (forget the name) they sell at Home Depot or Lowes is similar, but you don't have o mix that like I do with the 2 part. Unsure of the tensile strength of the expand-a-foam, though.
The expand-a-foam can (forget the name) they sell at Home Depot or Lowes is similar, but you don't have o mix that like I do with the 2 part. Unsure of the tensile strength of the expand-a-foam, though.
I have seen two-part expanding foam used in a couple of other applications that some may not be aware of -
- stop/slow water seepage in below grade excavations (I was supt on largest excavation in San Francisco history in 2014-2016, lots of water intrusion)
- form driver specific seats in race cars (I have worked on nitro funny cars and dragsters)
My $.02
- stop/slow water seepage in below grade excavations (I was supt on largest excavation in San Francisco history in 2014-2016, lots of water intrusion)
- form driver specific seats in race cars (I have worked on nitro funny cars and dragsters)
My $.02
