Control Joint in Curb
Control Joint in 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 Curb
RE: Control Joint in Curb
Dowelling will not stop cracks from occurring and the longitudinal rebar will not stop them either, it will just hold them tightly together.
This defies all practicality of concrete technology. I would suggest that you look at some of those curbs that have been placed...you'll find the cracks.
RE: Control Joint in Curb
RE: Control Joint in Curb
Dik
RE: Control Joint in Curb
RE: Control Joint in Curb
Dik
RE: Control Joint in Curb
RE: Control Joint in Curb
Dik