Concrete Pour / Info

[YiGGiN4SLoBS]

Could very well be the framer did it. Prolly making a header on the floor.

If I was running the crew I'd have pointed it out to you and apologized instead of letting you find it. 9 times out of 10 the home owner would brush it off.

Its cosmetic. Talk with the contractor and work something out that your both happy with.

Agree. You can chip concrete shooting air nails through headers if laying flat on the concrete.

Was it a really windy day when the crew did the pour? Sometimes the wind can dry the surface out too fast if cement is not covered and cause the surface to chip off or crack.

To me it looks like either that or the cement was over worked and the surface is spalling, but you would think if it was overworked it would only be in a certain area and not all over the slab. You REALLY have to try to overwork a spot with a power trowel before it will spall.

Could possibly be a bad batch of crete but if the builder claims someone shot a bunch of nails in it then he obviously doesn't think thats what it is... Ask him for more info on the nail shooting incident and if anything can be done about it and see what he says

[Tom7227]

[LightningBG]

To me the ones in a cluster look like they could be from a nail gun.

The other ones seem like maybe their was some aggregate right below the surface that chipped out after it dried/cured or while they were power troweling it.

[lindy rig]

I haven't seen any more new pitting in the last 4-5 days so hopefully that's a good sign.

The builder is meeting with the concrete sub, and then they want to meet with me. Still not sure what I should push for. At this point I think replacement is probably unlikely (and I don't really want to either)

Any idea what a epoxy floor job would cost for a 30x40? Would patching the holes and then coating the floor seem reasonable solution?

Is a written warranty reasonable for this situation?

[Pat K]

1200 sq ft would be $400 to $450 for material to coat the floor.

For best results I would have them wait until next May to have it coated. I know of cases where the epoxy pealed because the concrete hadn't cured enough. I'd wait at least 60 days after it was poured to have it coated.

Temperature is also a big factor. I helped on 1 winter application where we built a shelter outside the 16' door and the service door to hold in heat. We kept the temp above 65 in the garage but the epoxy still pealed by the doors and had to be reapplied in those areas the next summer.

[Coach1310]

So now the contractor is supposed to go to the cement plant and tell them how to mix the concrete?? Actually going there is the only way to ensure that its done properly. Or should he take a sample as they are pouring and send it in for analysis??? Maybe he should go to the woods too when they are logging and make sure the correct trees are cut down. How about them certainteed shingles?? You think its the contractors of the world that caused them to curl, crack, and blister. Some of you guys have unreasonable expectations, and I feel sorry for the guys working for you.

I find it funny that contractors want the profit that goes with being the general, but there is questions as to whether or not it is their responsibility. No matter if it is bad mix, bad crew, honest mistake, etc, it is ALL the responsibility of the General Contractor. Nobody is saying it is the General's fault, however it is the general's responsibility to make sure it is fixed.

[ozzie]

my thoughts exactly Coach...