[TowerTalk] Concrete Pad for U.S. Tower TX-472

[Chris Wynn]

I am in the process of putting up a TX-472.  So far, I have been relatively lucky and things have gone pretty smoothly.  I dug the hole using an excavator and "slightly" over dug it by a few feet.  From my initial calculations, I should have needed just under 8 cubic yards, but ended up pouring 16 cubic yards (32 tons and $2k more)!  
So far the concrete has sat for 7 days curing in the Georgia sun.  I have been pretty cautious to keep water on it, and covered pretty well. 
I know that the specs call for that concrete to cure for 28 days.  However, how early can I raise this tower?  Does anyone have any experience with cheating the 28 day curing period?  I was kind of hoping to raise it at the 21 day point.  
I guess the last real job is to trench from the tower back to the shack.  Therefore, I plan on spending the next couple of weeks burying hardline.....
Thanks y'all and see you in the pile ups!
73's es CUL,
ChrisN4XFA

Christopher L. Wynn
Attorney-at-Law
Christopher L. Wynn, ESQ., P.C.
6716 Church Street, Suite B
Douglasville, Ga., 30134
(770)942-8661 (Landline)
(770)577-1626
chris at chriswynnlaw.com