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Re: Precast beams

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It is very common for the joints between the beams to "telegraph" through the asphalt.  Your state FDOT should be able to give you their experience.
Also be aware that it is not uncommon to have differential camber and movement between adjacent beams.
David Finley
----- Original Message -----
Sent: Monday, March 07, 2005 11:31 AM
Subject: Precast beams

Some of the specs I?ve looked at call for a skid-resistant grooved finish on driving surfaces of precast beams and rough casting for those that will have a concrete topping.  Does anyone have comments if the top of a precast member is going to have an asphalt overlay?  I would think we would still want a rough cast finish or some other ?bonding? method (if so, what?).



Candi Anderson, P.E.