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Control Joint in Concrete Curb

Control Joint in Concrete Curb

Control Joint in Concrete Curb

(OP)
I have a 32ft x 42ft pile cap foundation with a 6" x 6" wide curb all around.  The pile cap will be poured first with dowels projecting.  The curb will be poured next.  It has one #4 bar in the long direction.  My question is this:  Should I cut control joints in the curb at say 10' intervals or will the curb not crack since it is dowelled into the cap and reinforced.  I'm using f'c=4000 conc with w/c ratio=.45 and 6% air entrainment.  If I need control joints how long after the pour can/should they be cut?

RE: Control Joint in Concrete Curb

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