Too Early To Pour? - Concrete & Paving - Contractor Talk

Too Early To Pour?

 
Thread Tools Search this Thread Display Modes
Old 03-12-2013, 06:41 PM   #1
Pro
 
Dierte's Avatar
 
Trade: Commercial Electrician
Join Date: Dec 2010
Location: Dayton, OH
Posts: 150
Rewards Points: 83

Too Early To Pour?


I'm in Ohio. My concrete guy wants to form on thursday and pour on friday. This is for a patio, stairs, walkways. I'm just concerned that it may be too early in the year to pour. The weather looks like this:
Thurs hi 40, low 31 pm flurries
Fri 51,44
Sat 48,35
Sun 38,34
Mon 47,34 rain
Am I being overly concerned or ? Thanks guys
__________________
Quote:
Originally Posted by rselectric1 View Post
EXACTLY! Being cheap can get pretty expensive.
Dierte is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 03-12-2013, 06:50 PM   #2
Always Learning
 
overanalyze's Avatar
 
Trade: Builder/Remodeler
Join Date: Dec 2010
Location: NW Ohio
Posts: 8,089
Rewards Points: 702

Re: Too Early To Pour?


As long as there is no frost in he ground, they will pay for hot water and calcium, and you have blankets, you are good! What type of finish? Broom?

Advertisement

__________________
It is what it is...now fix it.

Last edited by overanalyze; 03-12-2013 at 06:53 PM.
overanalyze is offline  
The Following User Says Thank You to overanalyze For This Useful Post:
Jaws (03-12-2013)
Old 03-12-2013, 06:51 PM   #3
The Sheriff

 
Jaws's Avatar
 
Trade: GC
Join Date: Dec 2010
Location: Texas
Posts: 23,299
Rewards Points: 4,898

Re: Too Early To Pour?


I pour in 50+, but its Texas.

I know some additives can be added, possibly fly ash, but I imagine a cold weather guy will be more help.
__________________
"The sound of the saftey clicking off is the only warning your gonna get......., so cover your ears" Northeast Wyoming 2016

John
Jaws is online now  
Sponsored Links
Advertisement
 
Old 03-12-2013, 07:00 PM   #4
Member
 
mart4005's Avatar
 
Trade: concrete leveling
Join Date: Mar 2008
Location: Wakarusa, IN
Posts: 69
Rewards Points: 81

Re: Too Early To Pour?


we've been pouring all winter. as long as it's 25 degrees and rising when we place it is our rule, and we've kept the frost out of the ground were good to go. The concrete has additives in it for that purpose hot water, water reducer, calcium, superplasticizers, and who knows what else. Just have to cover it with blankets when it's done.
mart4005 is offline  
Old 03-12-2013, 07:07 PM   #5
Pro
 
Dierte's Avatar
 
Trade: Commercial Electrician
Join Date: Dec 2010
Location: Dayton, OH
Posts: 150
Rewards Points: 83

Re: Too Early To Pour?


Quote:
Originally Posted by overanalyze View Post
As long as there is no frost in he ground, they will pay for hot water and calcium, and you have blankets, you are good! What type of finish? Broom?
Yes Broom finish. In the contract they say that they seal the concrete with something that is supposed to slow the curing time and help prevent cracks and shrinkage. Does this ring a bell to anyone?
__________________
Quote:
Originally Posted by rselectric1 View Post
EXACTLY! Being cheap can get pretty expensive.
Dierte is offline  
Old 03-12-2013, 07:15 PM   #6
Always Learning
 
overanalyze's Avatar
 
Trade: Builder/Remodeler
Join Date: Dec 2010
Location: NW Ohio
Posts: 8,089
Rewards Points: 702

Re: Too Early To Pour?


Quote:
Originally Posted by Dierte

Yes Broom finish. In the contract they say that they seal the concrete with something that is supposed to slow the curing time and help prevent cracks and shrinkage. Does this ring a bell to anyone?
Cure and seal. Pretty common practice, not so important in cold weather though.
__________________
It is what it is...now fix it.
overanalyze is offline  
Old 03-12-2013, 07:16 PM   #7
Member
 
mart4005's Avatar
 
Trade: concrete leveling
Join Date: Mar 2008
Location: Wakarusa, IN
Posts: 69
Rewards Points: 81

Re: Too Early To Pour?


Quote:
Originally Posted by Dierte View Post
Yes Broom finish. In the contract they say that they seal the concrete with something that is supposed to slow the curing time and help prevent cracks and shrinkage. Does this ring a bell to anyone?
yep, we use Kure-n-seal, it's a Sonneborn product.
mart4005 is offline  
Old 03-12-2013, 07:30 PM   #8
Renaissance Man
 
superseal's Avatar
 
Trade: Masonry, Carpentry and everything else.
Join Date: Feb 2009
Location: Southeastern PA
Posts: 6,805
Rewards Points: 5,816

Re: Too Early To Pour?


Who puts a broom finish on a patio anyway

With a high 51 and with sun shining, I'd skip the calcium, especially if there's steel reinforcement. As far as cure and seal, I'd skip that too. I would however spec up 4000 psi to facilitate a nice magged rosette finish on my nice new patio
__________________
"Under promise, over deliver and all that!" JBM
supersealconstruction.com

https://www.facebook.com/Superseal-C...2699413750013/
superseal is offline  
Old 03-12-2013, 07:39 PM   #9
I'm a Mac
 
Chris Johnson's Avatar
 
Trade: ICF Construction
Join Date: Apr 2007
Location: Hog Town
Posts: 5,487
Rewards Points: 4,254

Re: Too Early To Pour?


Drive a bunch of stakes in the ground and if you have no frost, go for it. Looking at your temps, I would probably forgo putting the blankets on the first night, but get them on before end of the day following.

And I would be adding 2% calcium, just so you can get it set up and get it finished
__________________
Chris
Chris Johnson is offline  
Old 03-12-2013, 07:45 PM   #10
Pro
 
Dierte's Avatar
 
Trade: Commercial Electrician
Join Date: Dec 2010
Location: Dayton, OH
Posts: 150
Rewards Points: 83

Re: Too Early To Pour?


Quote:
Originally Posted by superseal
Who puts a broom finish on a patio anyway

With a high 51 and with sun shining, I'd skip the calcium, especially if there's steel reinforcement. As far as cure and seal, I'd skip that too. I would however spec up 4000 psi to facilitate a nice magged rosette finish on my nice new patio
I want a broom finish. Better than a smooth finish
__________________
Quote:
Originally Posted by rselectric1 View Post
EXACTLY! Being cheap can get pretty expensive.
Dierte is offline  
Old 03-12-2013, 07:47 PM   #11
Pro
 
QCCI's Avatar
 
Trade: General Contractors/Specialty Contractors
Join Date: Jan 2013
Location: East Central Missouri
Posts: 649
Rewards Points: 952

Re: Too Early To Pour?


Nothing wrong with a broom finish. I would trowel it and put a very light broom on it.
QCCI is offline  
Old 03-12-2013, 07:50 PM   #12
Always Learning
 
overanalyze's Avatar
 
Trade: Builder/Remodeler
Join Date: Dec 2010
Location: NW Ohio
Posts: 8,089
Rewards Points: 702

Re: Too Early To Pour?


Broom is fine, but Super is right, a nice mag swirl looks sweet on a patio!
__________________
It is what it is...now fix it.
overanalyze is offline  
Old 03-12-2013, 08:14 PM   #13
Pro
 
Dierte's Avatar
 
Trade: Commercial Electrician
Join Date: Dec 2010
Location: Dayton, OH
Posts: 150
Rewards Points: 83

Re: Too Early To Pour?


Quote:
Originally Posted by QCCI
Nothing wrong with a broom finish. I would trowel it and put a very light broom on it.
It will be a light broom finish
__________________
Quote:
Originally Posted by rselectric1 View Post
EXACTLY! Being cheap can get pretty expensive.
Dierte is offline  
Old 03-12-2013, 11:00 PM   #14
Pro
 
Dierte's Avatar
 
Trade: Commercial Electrician
Join Date: Dec 2010
Location: Dayton, OH
Posts: 150
Rewards Points: 83

Re: Too Early To Pour?


And if it makes any diff. They are using 4500 psi
__________________
Quote:
Originally Posted by rselectric1 View Post
EXACTLY! Being cheap can get pretty expensive.
Dierte is offline  
Old 03-12-2013, 11:12 PM   #15
Maker of fine kindling
 
Gus Dering's Avatar
 
Trade: cabinet maker
Join Date: Oct 2008
Location: Santa Rosa CA
Posts: 6,199
Rewards Points: 12,490

Re: Too Early To Pour?


Quote:
Originally Posted by Chris Johnson View Post
Drive a bunch of stakes in the ground and if you have no frost, go for it. Looking at your temps, I would probably forgo putting the blankets on the first night, but get them on before end of the day following.

And I would be adding 2% calcium, just so you can get it set up and get it finished
Why leave the blankets off the first night?

Does anyone use "high early" anymore? I used to order it by that name if I needed a quick set that needed to be driven on the next day. Not sure exactly what it was, for sure was not calcium.
__________________
Every parent who has walked barefoot into their child's room late at night hates Legos
Gus Dering is offline  
Old 03-12-2013, 11:24 PM   #16
Fire up the BBQ
 
griz's Avatar
 
Trade: GC
Join Date: Nov 2009
Location: CA
Posts: 21,734
Rewards Points: 2,294

Re: Too Early To Pour?


Quote:
Originally Posted by Gus Dering View Post
Why leave the blankets off the first night?

Does anyone use "high early" anymore? I used to order it by that name if I needed a quick set that needed to be driven on the next day. Not sure exactly what it was, for sure was not calcium.
Stands for "High Early Strength Concrete".

Have not heard that term in many years....
__________________
SOME JOBS JUST AREN'T WORTH DOING:
griz is online now  
Old 03-13-2013, 06:39 AM   #17
I'm a Mac
 
Chris Johnson's Avatar
 
Trade: ICF Construction
Join Date: Apr 2007
Location: Hog Town
Posts: 5,487
Rewards Points: 4,254

Re: Too Early To Pour?


I'll leave the blankets off provided no rain is forecast. The concrete is giving off enough heat to maintain itself, good chance it's still soft enough if you cover it you cosmetically wreck the top, and hopefully the sun is shining the next morning which helps it as well. By the 2nd night the heats pretty much out of the slab and the negative temps can cause an adverse effect...hence get it covered
__________________
Chris
Chris Johnson is offline  
Old 03-13-2013, 07:52 AM   #18
Maker of fine kindling
 
Gus Dering's Avatar
 
Trade: cabinet maker
Join Date: Oct 2008
Location: Santa Rosa CA
Posts: 6,199
Rewards Points: 12,490

Re: Too Early To Pour?


Quote:
Originally Posted by griz View Post
Stands for "High Early Strength Concrete".

Have not heard that term in many years....
Well at least I'm not crazy. Just living in the past, it seems

When I was in the Seattle- Tacoma area, I fancied myself as quite the visqueen tent artist. Mostly for protection from all the liquid sunshine but there were many times we set the salamander heaters up to keep the chill factor off for the day of an early morning pour. The tent was already there anyway.
__________________
Every parent who has walked barefoot into their child's room late at night hates Legos
Gus Dering is offline  
Old 03-13-2013, 11:41 AM   #19
Renaissance Man
 
superseal's Avatar
 
Trade: Masonry, Carpentry and everything else.
Join Date: Feb 2009
Location: Southeastern PA
Posts: 6,805
Rewards Points: 5,816

Re: Too Early To Pour?


Quote:
Originally Posted by Dierte View Post
I want a broom finish. Better than a smooth finish
Nothing smooth about a mag finish
__________________
"Under promise, over deliver and all that!" JBM
supersealconstruction.com

https://www.facebook.com/Superseal-C...2699413750013/
superseal is offline  
Old 03-13-2013, 01:33 PM   #20
Pro
 
concretemasonry's Avatar
 
Trade: Masonry consultant
Join Date: Nov 2006
Location: MSP, Minnesota
Posts: 3,379
Rewards Points: 2,960

Re: Too Early To Pour?


Just do not use flyash in the concrete - it is retarder and slows the setting and reduces the early strength that gives you the strength gain you need in cool weather.

For concrete, you must be concerned the the concrete temperature and not the air temperature since most of that will be in forms that provide some air temperature. With 4500 psi you will have enough cement and Type III cement (high early cement) will help to kick off the curing process. Around here, the better suppliers will not supply anything for slabs other than 4000 psi with air entrainment without the regard to when it is poured.

A poor contractor may dislike not using fly ash because that gives him a time lag if everything does not go right.

Dick

Advertisement

__________________
Dick

Engineer, designer and consultant recently active domestically and internationally on construction and design in about 40 countries.
concretemasonry is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
replace coping or pour coping Santa's Helpers Pool Construction & Enclosures 2 04-05-2013 11:02 AM
To pour or not to pour, that is the question mudpad Commercial Construction 30 06-15-2011 08:07 PM
how early is too early when it comes to xmas music woodworkbykirk Off Topic (Non Trade) 18 12-03-2010 08:27 AM
pour small slab in corner of basement denverboz Masonry 5 08-18-2009 09:47 PM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?