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Posted by DanG on March 15, 2008, 3:56 pm
dpb gave you some excellent information.
Things that lead to popped and flaked tops:
The MOST likely cause is not letting the bleed water dissipate,
especially on air entrained concrete. This requires that the
finishers know what tools to use for floating the concrete and
when to start the finishing process.
They should not use a jitter bug or power trowel on air entrained
exterior concrete.
The bleed water is very hard to diagnose if there is high wind on
pour day or they are pouring on a saturated subgrade.
A freeze within the first week, but especially the first day or
two, can cause loss of the top.
The oil drips did you no major harm other than cosmetic. The
equipment on green concrete, however, violates every rule there is
for concrete. You should have been advised to not drive or park
on the concrete for at least three days, seven preferred.
Saw joints should have been performed on the same day as the pour.
The concrete should have been cured (chemical or water) for the
first 7 days.
Most concrete sealers recommend not applying until the concrete is
at least 28 days old.
--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)
dgriff237@7cox.net
> Last September/October I had a new 40x60' pad in front of my
> garage
> poured along with a 45x4' sidewalk from the house to the garage.
> This
> company also did a 250' asphalt turnaround. (I couldn't afford
> all
> concrete)
>
> Anyway, I will dispense initially with all the issues I had with
> these
> guys trying to get them to finish it properly at the end because
> it is
> a bit long.
>
> Here in Minnesota the ice had just melted on the concrete pad as
> the
> fellow who plowed lost his Ford truck in a garage fire. I only
> cleared
> areas where we walked and I parked my service truck (Iam an
> electrician) Anyhow, this past Wednesday it had all melted and
> was
> gone so I thought I'd get the broom out and sweep the debris
> off at
> least and tidy it up a bit.
>
> Well kiss my ass, now there are pits (quarter size) and along
> some of
> the joints it has disintegrated and crumbled completely and
> where the
> pits are seem that the concrete let go where large aggregate is
> under.
>
> With all the crap I put up with and the threats I got from the
> salesman when I held back a portion of the final money due until
> they
> cleaned the HYDRAULIC FLUID that leaked onto 2 day old poured
> concrete
> from the rollers they parked when they did the asphalt part.
> There
> were 2 large puddles the size of a 5 gallon bucket and dozens of
> others where they backed onto it each time while using the
> rollers on
> the asphalt. Quarter sized drops, evenly spaced again from the
> rollers.
>
> They never did return to clean it so I did it myself and they
> also
> never sealed it. I finally got them to give me the sealant and I
> would
> do it myself. 2 gallons they left me for a pad and sidewalk the
> size
> I previously mentioned. I ended up buying 3 more and it was
> pretty
> close to not enough. Now about that 2nd coat...........
>
> They deducted $500 from almost $14K bill for the hydraulic fluid
> leak
> and not sealing it. I just wanted it over with. This jerk, the
> owner
> in fact said "he'd be happy to accept $500 for a little oil on a
> driveway that's going to get oil on it anyway, it's a driveway"
>
> Get the drift of the mentality of what I went through?
>
> Now this disintegration of the pad.I am afraid I am in for a big
> fight. Might even get a little physical since they were good at
> threats before. Seriously.
>
> Anyway, did the fluid create what I am seeing now, or is it from
> not
> sealing it for a month or perhaps not properly.?
>
>
> Any replies of info appreciated,
>
> Roscoe aka Rick
>
>
>
>
>
>
> Knowledge is like money, the less you talk about it
> the more people assume you have.
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