concrete pour damaged by heavy rain
concrete pour damaged by heavy rain
(OP)
we were placing 4in. class c concrete sidewalk that had 6% air. It started raining hard before we could get it covered with plastic and the covered surface was soaked. Also ,walk that had set for an hour was not covered and the tool marks were obleterated buy the rain.We were able to refinish all of the walk to a decent appearence although some of the surface was sandy.
What can be expected as far as problems and are there any test that would tell us if this would be reliable sidewalk?
What can be expected as far as problems and are there any test that would tell us if this would be reliable sidewalk?





RE: concrete pour damaged by heavy rain
Having said all that, this is a sidewalk so the traffic is light and the consequence of durability issues is also small. Unless someone complains about the aesthetics, it will probably perform OK. Did they get what they paid for? Probably not, but again, the consequences of failure are low.
RE: concrete pour damaged by heavy rain
RE: concrete pour damaged by heavy rain
RE: concrete pour damaged by heavy rain
RE: concrete pour damaged by heavy rain
RE: concrete pour damaged by heavy rain
RE: concrete pour damaged by heavy rain
To have the contractor replace the concrete would likely require a more serious breach than just the rain markings on the surface. You could; however, press the point and perhaps get some compensation...not only for loss of aesthetics, but loss of long term surface durability.
RE: concrete pour damaged by heavy rain
This had raised an interesting professional issue for me as the project structural engineer though -- who holds responsiblity for the stupid decision to go ahead with the pour (my rebar inspection was 2 days prior to the pour date). What can one do to verify that the structural integrity of the slab is still there (the hambro system typically uses steel joists spaced at 4 feet on center with a 3" concrete topping reinforced with WWM - it is a composite system).
RE: concrete pour damaged by heavy rain
What affect could this have on the concrete?
RE: concrete pour damaged by heavy rain
RE: concrete pour damaged by heavy rain
Make sure the subgrade was not disturbed by the additional water and make sure the top surface of the concrete is relatively "hard". If both of these are OK, it is probably not a big issue (assuming you have good concrete to start).
RE: concrete pour damaged by heavy rain
RE: concrete pour damaged by heavy rain
RE: concrete pour damaged by heavy rain
RE: concrete pour damaged by heavy rain