| To: | <towertalk@contesting.com> |
|---|---|
| Subject: | [TowerTalk] Concrete with air. |
| From: | "J.G.Castellano" <caste@sympatico.ca> |
| Reply-to: | "J.G.Castellano" <caste@sympatico.ca> |
| Date: | Tue, 9 Oct 2007 23:17:29 -0400 |
| List-post: | <mailto:towertalk@contesting.com> |
Hello, I am installing a Trylon tower and the foundation drawing calls for 3,000PSI concrete (20MPa), when I explained what I was doing one of the concrete companies recommended 25Mpa with air. Can someone please explain what is the difference. 73, Julio VE3FH _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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