crack on top of the columns
crack on top of the columns
(OP)
Hi guys,
i have encountered the attached crack in some columns that have been poured 5 days ago. the crack is just at the top of the column which is the bottom of the slab since the column is stopped at the slab soffit.
Despite it is wide, I don't think it will affect the strength of the column. ( maybe due to some vibration problems during casting of the columns).
Any thoughts if i shall take any measures before casting the slab ?
i have encountered the attached crack in some columns that have been poured 5 days ago. the crack is just at the top of the column which is the bottom of the slab since the column is stopped at the slab soffit.
Despite it is wide, I don't think it will affect the strength of the column. ( maybe due to some vibration problems during casting of the columns).
Any thoughts if i shall take any measures before casting the slab ?






RE: crack on top of the columns
The column is presumably adequately tied but I would suggest filling such a large crack with epoxy just for safe measure.
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RE: crack on top of the columns
RE: crack on top of the columns
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RE: crack on top of the columns
Sorry I didn't read your post or look closely enough at the photograph before I rashly attributed it to plastic shrinkage. While the cracks do have the general ragged appearance of plastic shrinkage cracks, I agree that all that realignment of bars, probably with some heat as well as brute force, probably caused the cracks.