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Total 19 documents matching your query.

1. [TowerTalk] concrete forms (score: 1): Author: Craig Clark <jcclark@wildblue.net>; Date: Mon, 31 Jul 2006 10:59:51 -0400; My son works for a local concrete company and pours thousands of yards of concrete each week. They do one of two things: Use disposable forms Impregnate wood forms with a 50/50 mix of diesel fuel and; /archives//html/Towertalk/2006-07/msg00910.html (7,607 bytes)
2. Re: [TowerTalk] concrete forms (score: 1): Author: "ADRIAN REES" <rees.a@btconnect.com>; Date: Mon, 31 Jul 2006 16:23:33 +0100; Hi Guys Over here in the UK, I am about to "plant" 4 towers, and pour C35 Grade Concrete in the bases. Anyone know what is the setting time for this stuff, and can it poured in one or two lots ? Gett; /archives//html/Towertalk/2006-07/msg00912.html (8,620 bytes)
3. Re: [TowerTalk] concrete forms (score: 1): Author: "KA9OFM John Garrett" <ka9ofm@gmail.com>; Date: Mon, 31 Jul 2006 10:32:40 -0500; While 2 days is good setting time for a pour that is only 4 - 6 inches and everyone says at least 2 days, because of the extreme thickness of the tower base I always allow a full week for it to dry.; /archives//html/Towertalk/2006-07/msg00914.html (10,660 bytes)
4. Re: [TowerTalk] concrete forms (score: 1): Author: "Clive Whelan" <clive.whelan@btinternet.com>; Date: Mon, 31 Jul 2006 15:55:52 -0000; Adrian Don't even think about putting any stress on it for at least a week, preferably a fortnight. Further if you get very warm wx like I had last year ( yes in GW!), cover with polythene to prevent; /archives//html/Towertalk/2006-07/msg00915.html (9,395 bytes)
5. Re: [TowerTalk] concrete forms (score: 1): Author: Alan NV8A <nv8a@att.net>; Date: Mon, 31 Jul 2006 12:31:57 -0400; My understanding is that -- in the US, at least -- the specified strength of concrete is achieved only after 28 days. What percentage it would have achieved after two days, a week, two weeks, etc., I; /archives//html/Towertalk/2006-07/msg00917.html (8,698 bytes)
6. Re: [TowerTalk] concrete forms (score: 1): Author: "Tom Osborne" <w7why@verizon.net>; Date: Mon, 31 Jul 2006 09:37:09 -0700; Tom W7WHY _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/; /archives//html/Towertalk/2006-07/msg00918.html (9,672 bytes)
7. Re: [TowerTalk] concrete forms (score: 1): Author: Steve Katz <stevek@jmr.com>; Date: Mon, 31 Jul 2006 09:39:07 -0700; I have been quoted an 8-week delivery delay for the tower I have in mind, but I can get the base plate and bolts delivered ahead of time so that the concrete will have had at least the full four week; /archives//html/Towertalk/2006-07/msg00919.html (7,937 bytes)
8. Re: [TowerTalk] concrete forms (score: 1): Author: Steve Katz <stevek@jmr.com>; Date: Mon, 31 Jul 2006 09:40:15 -0700; My understanding is that -- in the US, at least -- the specified strength of concrete is achieved only after 28 days. What percentage it would have achieved after two days, a week, two weeks, etc., I; /archives//html/Towertalk/2006-07/msg00920.html (8,060 bytes)
9. Re: [TowerTalk] concrete forms (score: 1): Author: <ersmar@comcast.net>; Date: Mon, 31 Jul 2006 12:49:07 -0400; Adrian: Indeed it would be good to keep the top of the concrete pour wet by covering in old cloths or rugs and hosing it with water frequently during the curing process. This will prevent the water f; /archives//html/Towertalk/2006-07/msg00921.html (12,917 bytes)
10. Re: [TowerTalk] concrete forms (score: 1): Author: Cqtestk4xs@aol.com; Date: Mon, 31 Jul 2006 12:51:13 EDT; 28 days allows concrete to cure to around 90% of its strength. If allowed to dry to quickly, the surface becomes "crazed" and can develop lots of small surface cracks. This is not usually a problem w; /archives//html/Towertalk/2006-07/msg00922.html (7,948 bytes)
11. Re: [TowerTalk] concrete forms (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Mon, 31 Jul 2006 19:21:45 +0200; That´s what I´ve done in SM2 land for over 35 years, great I haven´t been wrong, ofcourse that´s what the result also has showed me. 73 Jim SM2EKM -- _________________________; /archives//html/Towertalk/2006-07/msg00923.html (8,181 bytes)
12. [TowerTalk] concrete forms (score: 1): Author: Nick Pair <daweezil2003@yahoo.com>; Date: Mon, 31 Jul 2006 10:38:24 -0700 (PDT); A couple of notes on bases: 1; Concrete tales 30 days to reach 90% ultimate strength under average conditions. Heat, dryness, and mix will vary this time but usually to the longer side. The so-called; /archives//html/Towertalk/2006-07/msg00924.html (9,933 bytes)
13. [TowerTalk] concrete forms (score: 1): Author: "Jim Jarvis" <jimjarvis@verizon.net>; Date: Mon, 31 Jul 2006 18:21:02 +0000; Adrian... Clive's comments are on-point. However, if you try to mix at the site, you will have to schlepp both bags of 'crete and water. It might be easier to mix below, and have a powered means to t; /archives//html/Towertalk/2006-07/msg00926.html (9,145 bytes)
14. Re: [TowerTalk] concrete forms (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Mon, 31 Jul 2006 14:17:44 -0400; It's also worth remembering that the load on the base of a guyed tower is a LOT less than that applied by any sort of self-supporter -- a former contributor, I think it was N4KG, didn't even use conc; /archives//html/Towertalk/2006-07/msg00927.html (10,417 bytes)
15. Re: [TowerTalk] concrete forms (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Mon, 31 Jul 2006 12:22:54 -0700; You'll want to talk to your concrete supplier. The "set time" for the concrete can be adjusted to a certain extent (they do this anyway to compensate for temperature changes.. it's a chemical reactio; /archives//html/Towertalk/2006-07/msg00933.html (10,178 bytes)
16. Re: [TowerTalk] concrete forms (score: 1): Author: "Keith Dutson" <kdutson@sbcglobal.net>; Date: Mon, 31 Jul 2006 14:34:26 -0500; I would try to avoid mixing on site. That is a BIG job and will be difficult to manage. You should pour one entire base within about an hour or two to ensure a monolithic cure. In my part of the worl; /archives//html/Towertalk/2006-07/msg00934.html (11,099 bytes)
17. Re: [TowerTalk] concrete forms (score: 1): Author: kr7x@comcast.net; Date: Mon, 31 Jul 2006 19:33:35 +0000; Adrian; Do you really need C35 grade concrete? that is equivalent to 5000 psi concrete over here? I would think that C25 for a foundation like these would be adequate, code requirement? The best way; /archives//html/Towertalk/2006-07/msg00935.html (10,959 bytes)
18. Re: [TowerTalk] concrete forms (score: 1): Author: Tom Anderson <WW5L@gte.net>; Date: Mon, 31 Jul 2006 14:45:02 -0500; When I put in the 4x4x6 base for my TriEx WT51 crank up back in 1993 I used commerically obtained "six sack" concrete ReadyMix which was supposedly the same specs for interstate highway overpasses. T; /archives//html/Towertalk/2006-07/msg00936.html (11,316 bytes)
19. Re: [TowerTalk] concrete forms (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Mon, 31 Jul 2006 23:00:53 +0100; That's absolutely right. However, it's not just a matter of energy - you need enough capacity to shift a whole truckload of concrete up the hill very quickly. Otherwise you're into rapidly escalating; /archives//html/Towertalk/2006-07/msg00939.html (10,013 bytes)

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