- 1. [TowerTalk] re; exploding concrete (score: 1)
- Author: Greenacres113@aol.com
- Date: Sat, 15 Sep 2007 07:41:32 EDT
- I believe it's entirely possible. When you are a novice learning arc welding & gas cutting the first lesson is to place the metal properly. If you weld or burn on concrete you can super heat the trap
- /archives//html/Towertalk/2007-09/msg00514.html (7,072 bytes)
- 2. Re: [TowerTalk] re; exploding concrete (score: 1)
- Author: Jim Lux <jimlux@earthlink.net>
- Date: Sat, 15 Sep 2007 07:41:17 -0700
- I don't think so.. Yes, it explodes or spalls, but the explanation is wrong. It's the thermal stresses (like pouring water on non-pyrex type hot glass). And, as Hank Lonberg pointed out, in well cons
- /archives//html/Towertalk/2007-09/msg00520.html (7,392 bytes)
- 3. Re: [TowerTalk] re; exploding concrete (score: 1)
- Author: "jeremy-ca" <km1h@jeremy.mv.com>
- Date: Sat, 15 Sep 2007 12:50:56 -0400
- He is not talking about gaps. The water used to form concrete is absorbed by the cement and turns into a crystaline structure. It is that structure that is conductive to some degree that is affected
- /archives//html/Towertalk/2007-09/msg00534.html (11,185 bytes)
- 4. Re: [TowerTalk] re; exploding concrete (score: 1)
- Author: Jim Lux <jimlux@earthlink.net>
- Date: Sat, 15 Sep 2007 14:34:17 -0700
- Indeed.. but water molecules that have been dissociated from the concrete being heated ( a process that I believe is negligible in a lightning heating context) or are just there because the concrete
- /archives//html/Towertalk/2007-09/msg00535.html (11,282 bytes)
- 5. Re: [TowerTalk] re; exploding concrete (score: 1)
- Author: Jim Lux <jimlux@earthlink.net>
- Date: Sat, 15 Sep 2007 17:16:11 -0700
- Except that if you calculate the temperature rise in a copper or steel rod/wire, with the kinds of currents known to exist in a lightning stroke, it's not all that much. It just doesn't get that hot.
- /archives//html/Towertalk/2007-09/msg00541.html (11,948 bytes)
- 6. Re: [TowerTalk] re; exploding concrete (score: 1)
- Author: Jim Lux <jimlux@earthlink.net>
- Date: Sat, 15 Sep 2007 17:38:46 -0700
- It would be interesting to think of an experiment that would provide useful information. Generating high current impulses is pretty straightforward (at least for folks who have HV pulse power equipm
- /archives//html/Towertalk/2007-09/msg00542.html (8,402 bytes)
- 7. Re: [TowerTalk] re; exploding concrete (score: 1)
- Author: "Gene Smar" <ersmar@verizon.net>
- Date: Sat, 15 Sep 2007 21:10:58 -0400
- -- Original Message -- From: "Jim Lux" <jimlux@earthlink.net> To: "jeremy-ca" <km1h@jeremy.mv.com> Cc: "David Gilbert" <xdavid@cis-broadband.com>; "N7DF" <n7df@yahoo.com>; <towertalk@contesting.com>;
- /archives//html/Towertalk/2007-09/msg00543.html (10,037 bytes)
- 8. Re: [TowerTalk] re; exploding concrete (score: 1)
- Author: "Jim Chaggaris" <jimc@pwrone.com>
- Date: Sat, 15 Sep 2007 20:18:44 -0500
- Oh God Gene! Don't use the Prolec website as a reference for any transformer of quality. They fail all the time... 73. Jim N9WW James Chaggaris President PowerOne Corp. 1020 Cedar Avenue Suite 110 St
- /archives//html/Towertalk/2007-09/msg00544.html (10,556 bytes)
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