Construction Joint Wait Time
Construction Joint Wait Time
(OP)
Hi everyone, I have a question regarding construction joints in concrete. I am working on a parking garage (256'x120') that has a 3.5" concrete topping slab supported by precast double T's. The contractor will pour the middle 1/3 of the topping slab first, then pour the two ends after that. My question is, how long should he wait to pour the ends after pouring the middle section? Are there any recommended standards by ACI for this issue? Any help would be appreciated.






RE: Construction Joint Wait Time
RE: Construction Joint Wait Time
Dik
RE: Construction Joint Wait Time
RE: Construction Joint Wait Time
RE: Construction Joint Wait Time
On crack sensitive structures (normally water holding), I try to wait 14 days between adjacent pours, but often times change that to 7 days at the contractors request. The least amount of time I wait is 3 days.
If you're really concerned about shrinkage, use low w/c ratio concrete and have the batch plant provide documentation of shrinkage rates for the proposed mix prior to approval.
RE: Construction Joint Wait Time
RE: Construction Joint Wait Time
RE: Construction Joint Wait Time
RE: Construction Joint Wait Time
RE: Construction Joint Wait Time
RE: Construction Joint Wait Time