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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+exploding\s+foundations\s*$/: 19 ]

Total 19 documents matching your query.

1. Re: [TowerTalk] exploding foundations (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Fri, 14 Sep 2007 08:11:05 -0600
What exploding concrete?? Back up your claim with real life validated proof. My experience has been the opposite. Doug It does not matter what kind of ground system you use as long the conductors are
/archives//html/Towertalk/2007-09/msg00483.html (9,491 bytes)

2. Re: [TowerTalk] exploding foundations (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Fri, 14 Sep 2007 10:33:46 -0400
What exploding concrete?? Back up your claim with real life validated proof. My experience has been the opposite. Doug Want evidence? See Figure 4 (and the text below it) in the link below: http://ww
/archives//html/Towertalk/2007-09/msg00486.html (8,665 bytes)

3. Re: [TowerTalk] exploding foundations (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Fri, 14 Sep 2007 08:20:33 -0700
Paul Christensen wrote: What exploding concrete?? Back up your claim with real life validated proof. My experience has been the opposite. Doug Want evidence? See Figure 4 (and the text below it) in t
/archives//html/Towertalk/2007-09/msg00489.html (11,184 bytes)

4. Re: [TowerTalk] exploding foundations (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Fri, 14 Sep 2007 09:25:21 -0600
I see a cracked foundation in Figure 4 ... so where is the exploding foundation?? My BS detector is turned on. Want evidence? See Figure 4 (and the text below it) in the link below: http://www.mikeho
/archives//html/Towertalk/2007-09/msg00490.html (8,686 bytes)

5. Re: [TowerTalk] exploding foundations (score: 1)
Author: K4SAV <RadioIR@charter.net>
Date: Fri, 14 Sep 2007 11:44:15 -0500
The article does say what the cause of this crack was. Here is what they said: "A word of caution: A Ufer ground consisting solely of the tower foundation is a bad idea. Lightning surges passing thro
/archives//html/Towertalk/2007-09/msg00492.html (12,408 bytes)

6. Re: [TowerTalk] exploding foundations (score: 1)
Author: kr7x@comcast.net
Date: Fri, 14 Sep 2007 16:45:35 +0000
Jim / Paul / Doug and list: I have been holding back from responding to this thread as I have responded to this idea in the past, but I just couldn't hold back any more. The exploding concrete concep
/archives//html/Towertalk/2007-09/msg00493.html (12,181 bytes)

7. Re: [TowerTalk] exploding foundations (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Fri, 14 Sep 2007 10:22:59 -0700
K4SAV wrote: The article does say what the cause of this crack was. Here is what they said: "A word of caution: A Ufer ground consisting solely of the tower foundation is a bad idea. Lightning surges
/archives//html/Towertalk/2007-09/msg00496.html (10,531 bytes)

8. Re: [TowerTalk] exploding foundations (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Fri, 14 Sep 2007 10:37:35 -0700
That's kind of what it looked like to me, but I'm not a foundations and concrete kind of guy. If indeed the water in the concrete flashed to steam ( a There IS a report out there talking about proble
/archives//html/Towertalk/2007-09/msg00497.html (10,846 bytes)

9. [TowerTalk] Exploding Foundations (score: 1)
Author: David Gilbert <xdavid@cis-broadband.com>
Date: Fri, 14 Sep 2007 10:37:32 -0700
I'm firmly in the camp that says exploding foundations are a myth. I've spent hours and hours searching the internet and haven't been able to find a single documented case of a grounded tower foundat
/archives//html/Towertalk/2007-09/msg00498.html (10,454 bytes)

10. Re: [TowerTalk] Exploding Foundations (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Fri, 14 Sep 2007 11:09:44 -0700
The latter first..Different chemistry inside and outside the concrete? But, copper is pretty resistant to corrosion in general.. I doubt it's a concern. But, for wild speculation's sake.. what if the
/archives//html/Towertalk/2007-09/msg00499.html (8,371 bytes)

11. [TowerTalk] exploding foundations (score: 1)
Author: "DB1" <DB1@Dccnet.com>
Date: Fri, 14 Sep 2007 11:43:30 -0700
All this talk of concrete exploding due to the moisture flashing to steam is "in my opinion" absolute crap. The only way steam can occur is if the water in the concrete is subject to atmospheric pres
/archives//html/Towertalk/2007-09/msg00501.html (8,252 bytes)

12. Re: [TowerTalk] Exploding Foundations (score: 1)
Author: David Gilbert <xdavid@cis-broadband.com>
Date: Fri, 14 Sep 2007 11:55:43 -0700
Hi, Jim. I think we mostly agree here. You make a good devil's advocate, though ;) Regarding copper corrosion, if the ground environment was as extreme as you say, my guess is that any ground rods (c
/archives//html/Towertalk/2007-09/msg00502.html (10,317 bytes)

13. Re: [TowerTalk] Exploding Foundations (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Fri, 14 Sep 2007 13:33:57 -0700
And that's exactly why I wouldn't worry about it. _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http
/archives//html/Towertalk/2007-09/msg00505.html (8,568 bytes)

14. Re: [TowerTalk] Exploding Foundations (score: 1)
Author: "W7CE" <w7ce@curtiss.net>
Date: Fri, 14 Sep 2007 14:59:12 -0700
We're talking the bottom of the foundation which is typically 4 to 8' below the surface. In most parts of the country the ground temperature that deep doesn't vary much over the period of a year. So
/archives//html/Towertalk/2007-09/msg00506.html (9,358 bytes)

15. Re: [TowerTalk] Exploding Foundations (score: 1)
Author: "Gary Schafer" <garyschafer@comcast.net>
Date: Fri, 14 Sep 2007 17:10:38 -0500
I have seen a few concrete bases cracked from lightning strikes. These were all where there was no ground system attached to the tower at all. Just the tower attached to the J bolts in the concrete.
/archives//html/Towertalk/2007-09/msg00507.html (14,514 bytes)

16. Re: [TowerTalk] Exploding Foundations (score: 1)
Author: David Gilbert <xdavid@cis-broadband.com>
Date: Fri, 14 Sep 2007 15:36:32 -0700
Hi, Gary. Yes, I agree. I didn't mean to say that concrete cannot explode. It certainly can, and non-uniform heat accomplishes the task quite well. I just don't believe that concrete is **more likely
/archives//html/Towertalk/2007-09/msg00511.html (10,426 bytes)

17. Re: [TowerTalk] exploding foundations (score: 1)
Author: "Penninger Radio" <Charles@PenningerRadio.com>
Date: Fri, 14 Sep 2007 14:27:00 -0500
Well if you put a torch to concrete, even 40 year old stuff, it will blow up in your face, could be moisture in the concrete. my 3 1/2 cents worth. Charles, KC9DAO ^ ^ -- Original Message -- From: "D
/archives//html/Towertalk/2007-09/msg00512.html (10,064 bytes)

18. Re: [TowerTalk] Exploding Foundations (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Fri, 14 Sep 2007 20:48:28 -0600
I am calling you on this. What is a few ... one, two, five, more than five? How do you know that these bases were cracked from lightning strikes and not from some other action? Please explain. Did yo
/archives//html/Towertalk/2007-09/msg00513.html (8,832 bytes)

19. Re: [TowerTalk] Exploding Foundations (score: 1)
Author: "Gary Schafer" <garyschafer@comcast.net>
Date: Sun, 16 Sep 2007 21:50:32 -0500
Well thank you Doug! I didn't know that my credibility had a score card. It's so nice to know that someone is keeping track. It seems these answers are awfully important to you so I will oblige. You
/archives//html/Towertalk/2007-09/msg00564.html (11,506 bytes)


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