Concrete Curing Time
Gene Bleuler
wait before I should drive my sedan on it? What about allowing a small
delivery truck (UPS/FedEx) to pull in?
aemeijers
Around here, tradition is foot traffic in 24 hours, cars in a week, and
no trucks for a month. (and a loaded UPS truck is pretty heavy, one
reason they almost always double-park in the street, the others being
that backing up takes time and increases chances of an accident.)
But we can't see your driveway and soil from here, and we don't know how
the substrate was prepared, and what reinforcing was used. Call the
company that put the driveway in. They will likely have very specific
instructions as part of their warranty package. Did they cover it during
the initial cure with straw or plastic, or just tell you to hose it down
daily to keep it from drying too fast? (Or does modern concrete not need
that in warmer weather?)
--
aem sends...
Phisherman
wrote:
>I had a new 4" deep concrete driveway poured last week. How long should I
>wait before I should drive my sedan on it? What about allowing a small
>delivery truck (UPS/FedEx) to pull in?
>
Concrete fully cures in about a month, but you can drive on it after a
day. Keep your drive watered down for a week or two. Pouring
concrete is more of an art than a science. Good luck.
Steve Barker
s
DanG
they used curing compound and the proper subgrade compaction work
as done.
--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)
dgri...@7cox.net
"Gene Bleuler" <eu...@head.net> wrote in message
news:gra7e7$po$1...@news.albasani.net...
Jim Elbrecht
wrote:
>I had a new 4" deep concrete driveway poured last week. How long should I
>wait before I should drive my sedan on it? What about allowing a small
>delivery truck (UPS/FedEx) to pull in?
I wouldn't ever let a delivery truck drive on a 4" slab. Isn't 6"
standard for driveways? Or is there some newfangled additive that
makes concrete stronger?
[or is the extra cost of 2" just so low compared to the whole job that
it is just a good idea?]
Jim
Smitty Two
Phisherman <nob...@noone.com> wrote:
> Concrete fully cures in about a month
The time frame I've always heard is a hundred years. Seriously. Maybe a
moot point since it's a log curve, but hell it's Sunday.
Steve Barker
ACTUALLY, you be lucky to find more than 3.5" in a driveway. That't the
height of a 2x4 thats used for forms. And it's always called 4".
Driveways are rarely 6" unless specially ordered that way. And a 4"
driveway is plenty strong for any city delivery truck. hell they backed
a full load of concrete in on mine to re-do the upper section and no
adverse effects.
s
Robert Neville
>> Concrete fully cures in about a month
>
>The time frame I've always heard is a hundred years. Seriously. Maybe a
>moot point since it's a log curve, but hell it's Sunday.
No, it's not a moot point. Air cured concrete has about 30% of it's final
compressive strength in 7 days, about 50% after 28 days, and it gradually
increases from there over years. As you say, very close to a log function.
It's also important to get the correct mix and reinforcement. Cheap concrete
might be 2500psi - better to get 4000psi and then use rebar or steel mesh.
Tony Hwang
I had a concrete pad poured in my back yard to park 7000 lbs. 5th wheel
trailer and 3/4 ton PU truck. I parked both after 10 days since pad was
poured. Nothing bad happened. Really concrete cures LONG time; ~
100 years, gets harder and harder with time.
SteveB
"Steve Barker" <ichase...@hotmail.com> wrote in message
news:ad6dnZICPaxkRkXU...@giganews.com...
YABBUT .........
It's difficult to find a craftsman nowadays who can cut a grade for a 2 x 4
framed pour that doesn't run from 3.5 to 6 inches thick.
For me, I like to give it a full month before driving on it with a larger
than average vehicle. After that, whatever's going to happen will. Just
put expansion joints and saw cuts, and roll the dice.
And ......... as an afterthought, a half or full sack mix more than required
is cheap insurance.
YMMV, but mine is always right ............ ;-)
Steve
SteveB
"Robert Neville" <do...@bother.com> wrote in message
news:ft0it4t3m58ifgrhh...@4ax.com...
I worked on a pan crew for high rise buildings. We put in all the forms for
the floors. When we did a pour, we had screw jacks underneath the forms,
about 8' apart. You could not touch any jack for five days after the pour.
After five days, you could remove every other jack. (50%) After one week,
you could remove every other jack. After one week, you could remove the
remaining jacks.
The concrete in Hoover Dam is still curing. They put water recirculating
lines in there that are still functioning and removing heat from the curing
concrete, poured in about 1932-1935. IIRC, they projected the concrete
would be fully cured in 100 years. By now, though, I would think that the
percentage per year would be a percent of a percent.
Steve
Rich
"SteveB" <old...@deepends.com> wrote in message
news:njboa6-...@news.infowest.com...
I think your right and wrong. The concrete is still curing but the water
lines to take the heat away have since been filled with concrete to avoid
them being chocked down and when the heat level reached a certain point they
forced concrete in them before they were compromised.
Rich
dougruhlin
http://www.homeownershub.com/maintenance/Concrete-Curing-Time-367067-.htm
dougruhlin wrote:
Gene Bleuler wrote:
Gene -
Absolutely, 100%, contact the ready mixed concrete producer (or the
contractor who placed the driveway, if you believe him to be trustworthy)
and ask them! In particular, the ready mixed concrete producer (the firm
who supplied the concrete in the truck that was delivered to your project)
will be able to tell you, and you should follow their advice by all means!
If you don't, you may very well regret it!
-------------------------------------
Douglas E. Ruhlin
Environmental / Sustainability Consultant, CCPf, LEED GA, REM, CEA
Resource Management Associates
(609) 693-8301
dru...@resourcemanagementassoc.com
www.resourcemanagementassoc.com
Red Green
news:d8a4$4dca8845$45499b77$27...@news.flashnewsgroups.com:
> responding to
> http://www.homeownershub.com/maintenance/Concrete-Curing-Time-367067-.h
NNTP-Posting-Date: Sun, 5 Apr 2009 12:16:08 +0000 (UTC)
It's probably dry by now.
RicodJour
(dougruhlin) wrote:
> responding tohttp://www.homeownershub.com/maintenance/Concrete-Curing-Time-367067-...
>
> dougruhlin wrote:
> Gene Bleuler wrote:
>
> > I had a new 4" deep concrete driveway poured last week. How long
> > should I
> > wait before I should drive my sedan on it? What about allowing a small
> > delivery truck (UPS/FedEx) to pull in?
>
> Gene -
>
> Absolutely, 100%, contact the ready mixed concrete producer (or the
> contractor who placed the driveway, if you believe him to be trustworthy)
> and ask them! In particular, the ready mixed concrete producer (the firm
> who supplied the concrete in the truck that was delivered to your project)
> will be able to tell you, and you should follow their advice by all means!
> If you don't, you may very well regret it!
>
> -------------------------------------
> Douglas E. Ruhlin
>
> Environmental / Sustainability Consultant, CCPf, LEED GA, REM, CEA
>
> Resource Management Associates
> (609) 693-8301
Hey Doug. Posting from that ridiculous homelubbers "forum" makes you
look less professional. A lot of idiots post from there and respond
to posts that are months or even years old, and answer questions that
are far beyond the time limit of applicability. Like you just did.
I'm not sure if that's the fault of that web site or what, but it's
shooting yourself in the foot. I'm not busting your balls, just
saying it straight.
If you want to post through that web site for some reason, I suggest
you remove all of the tag line and use a screen name for anonymity.
R
dwasy...@gmail.com
ya spend $big$ dollars for a nice job...
Why would you damage the concrete that should last for MANY years just to drive on it a few days early?
There are molecular structures that have to form... drive on it and you damage those structures, resulted in a failed surface.
TWO weeks!
Rodney
Please do not drive on the concrete after 24 hrs unless you want to risk
damaging it!! It is scientific too. The mix , site preparation and
application all make a difference to the outcome.. keeping an eye on it and
wetting it down in hot weather is a good idea as it prevents it curing too
quickly as the water content drops while the chemical reaction is strongest.
This helps prevent cracking and crazing. Concrete gets progressively stronger
with time , that can be years but is sufficiently strong enough for most
domestic usage after 7 days,with care. Once it is cracked,or marked it is
permanent. Patience required!
--
for full context, visit http://www.homeownershub.com/maintenance/concrete-curing-time-367067-.htm
trader_4
> replying to Phisherman, Rodney wrote:
> Please do not drive on the concrete after 24 hrs unless you want to risk
> damaging it!!
isn't an issue.
Ed Pawlowski
SteveB
We in the construction industry in California give it a minimum of 2 days and
most likely 3 days before driving on it. We have driven on them in 2 days and
had no problems. We would not do any deliverys tho...
SteveB
I have been working in the building industry for 25 + years in California. We
pour 6" drive approachs on Friday and Drive tractors on them on Monday without
any problems.
bob haller
FlyAsh Forever
You are correct, they take core samples from Glen Canyon Dam every five years
to compute compressive strength, it was poured in the early 60's and is still
getting harder every test cycle!
--
for full context, visit https://www.homeownershub.com/maintenance/concrete-curing-time-367067-.htm
Bloopy125
Idiot. Concrete and it’s chemical structure is absolute SCIENCE. A day?!?!?
Try 7-10 days for normal passenger vehicles. You give bad advice and the only
“art” to your post is your fabrication of fact.
