[hintozac]

Hey I poured my concrete driveway last Saturday. . And the day after the flaking started to appear. . It has got worse and worse as the week has gone on. . NO water was added to the batch when the truck turned up and very little water was sprayed on to finish it . Water could not sit on the slab as it dried because it is on a slope. Is it still that water that wreck it or would it be the batch?

[twinkiedooter]

It was what they call hot or old concrete that was poured. Depending on who you purchased the concrete from you may want to complain very loudly about getting a hot or old batch.

[SpringtimeHomes]

In this hot weather, it could have been finished too late.

[Fr_Chuck]

HINTOZAC I will assume you have no idea how this site works.

You reported twinkledooter post as being wrong or bad but you added information like you thought they could see it.
Your report goes to the moderators or admin for them to see if the poster did something in violation of the site rules.

Please take time and read the site rules and how the site works.

If you want to add more info, ANSWER your own question and add that info.

Here is the information that you posted as a report against the other poster, I assume this was additional info



The manager from the plant came out and took no responsibility! He said because it was not the whole patch from first load it can't be the mix. . But we did nothing different to that part than everywhere else. The bottom part with second truck got work less and is perfect. . The problem area got bull floated both ways, about half an hour after been in. . Than I steeled armed it all. . Than broomed it. . I have never seen the flaking happen before.
Does everyone think the manager was right in saying that it was not his batch or what. I just wonder we I can go from here. . Obviously I can't just abuse him. . Won't get me anywhere. Bloody disappointing seems it was a 3 grand project. .

[twinkiedooter]

Since this involved two trucks - the manager knows full well which truck was "hot" and which truck was not. He's just trying to dodge the bullet here making you think it's your fault and not his. Try mentioning the dreaded "L" word (lawyer) and see if his attitude changes.

[kris.kirch]

Floating concrete to early will trap the bleed water under the surface causing this problem. A concrete finishers will screed concrete wait for bleed water to come to surface and start evapourating then float.

[smearcase]

kris.kirch is korrect (sorry-couldn't resist))

Also:
Spraying water onto concrete to facilitate finishing (in my experience) is the most common cause of flaking of the surface.
A major factor in ultimate concrete strength is water-cement ratio. Spraying water onto the surface greatly increases that ratio in a very critical area.

Air entrainment additives also increase durability of the structure and its surface, but that is most effective against freeze-thaw cycles.