Detailing Rebars in Pour Strips
Detailing Rebars in Pour Strips
(OP)
Typically rebars are spliced in the pour strips in suspended slabs. If rebars are NOT spliced, i.e. continuous, and the concrete is poured after 28 days from pouring the adjacent panels, is that any helpful for releasing shrinkage stress?
Thanks for the input.
Thanks for the input.






RE: Detailing Rebars in Pour Strips
RE: Detailing Rebars in Pour Strips
Thanks for the input. I did not understand from you if the rebars being continued across the pour strip vs. being lap spliced will affect the purpose of the pour strip.
RE: Detailing Rebars in Pour Strips
While delay between pours is beneficial in controlling shrinkage in the longitudinal direction, in the opposite direction, shrinkage of the second pour will be restrained by the first pour and will likely result in some restraint cracking.
RE: Detailing Rebars in Pour Strips
RE: Detailing Rebars in Pour Strips
I am sorry, I didn't fully understand your question at first. I thought you were comparing placing the slab with just constructions joints with continuous reinforcing vs. with delayed pour strips with lapped bars. Now I see you are talking about using pour strips, but with continuous bars.
Certainly the continuous bars would provide some restraint to the second pour, while lapped bars would not. So the second slab would tend to crack more. How much more and whether the cracking is important would be dependent on the structure.