Carbon Fiber Reinforced Precast Panels
Carbon Fiber Reinforced Precast Panels
(OP)
I am involved in a project where the design team is considering using carbon fiber reinforced precast panels. (One such product is "Carboncast". Just wondering if anyone has had any experience with this type of panel, good bad or indifferent. One thing we are pondering is whether cracking is ever a problem since the panels are so thin.






RE: Carbon Fiber Reinforced Precast Panels
If so, they are subject to cracking, but the frame has to be sized and the supports located to minimize cracking due to wind, seismic, etc. It's not too hard to figure though.
We used to use staad to run our frames and the manufacturer had a typical spacing for the support rods.
Hope this helps.
RE: Carbon Fiber Reinforced Precast Panels
RE: Carbon Fiber Reinforced Precast Panels
The way we design architectural precast is to limit cracking to 5*sqrt(f'c), so the reinforcement that we added to each panel was technically not required except for temp and shrink. Although we did design the bottom reinforcement for flexure and some of the vertical bars to distribute loads from the connections into the panel.
Seeing the statement above about using it as secondary reinforcement would make me uneasy using it for strength reinforcement. But for temp and shrinkage, I don't see why you couldn't use it.
Let us know what you end up doing, as this is a very interesting application.
RE: Carbon Fiber Reinforced Precast Panels
It is therefore important to have some minimum acceptable thickness regardless of the high tensile strength of carbon reinforcing. It is also recommended that a fiber reinforced concrete can aide in crack reduction.
Good luck
Regards,
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RE: Carbon Fiber Reinforced Precast Panels
See
http://www.sikaconstruction.com/con-repair-ss.htm
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