Pouring And Finishing Concrete In Freezing Cold Temperatures
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- čas přidán 11. 09. 2024
- #Pouringconcrete #Finishingconcrete #Mikedayconcrete
This video will show you how to pour and finish concrete in freezing cold temperatures. When we started pouring the concrete at 7 am, the temperature was 15 degrees F. At 3:30 pm the temperature was only 30 degrees F. How did the concrete set-up in freezing cold temperatures? We use a 4000 psi concrete mix with 160 degree hot water mixed into it. Then we add an accelerator to boost the drying time. Sometimes this formula works really good, but if you're pouring on a sub-base that's extremely cold your concrete will cool down very fast and not set-up like you would expect it to. We never pour concrete on a frozen sub-base. If you do, the sub-base will settle and your concrete will have un-even areas as the hot concrete starts defrosting the sub-base. Always protect your sub-base from freezing, you can use insulating blankets like we do or you can use plastic and hay or straw. Then, after finishing the concrete, protect the concrete with the same insulating blankets or hay. Keep the concrete from freezing until it reaches 500 psi or at least 2 full days after the pour.
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O man. At 74 now, the memories of all those mornings getting up at 0 dark 30, banging the ice off the windshield, freezing in the truck til the heater works, dark at the jobsite, one last coffee then out in the cold! I'm cold just watching!
I am in pursuit of a winter masonry position. I’ve only worked the summer seasons. I’ve heard nothing but bad things about concrete work in the cold. That motivates me to do it even more. Not only do I believe it is going to make me a better mason, but I believe it is going to make me a better individual as a whole. I’m on a mission baby, and there is no other way. Much love to all the workers out there. Yeah buddy.
Ya winter concrete work will definitely make a person love 95degrees and sunny
I been doing concrete pots and since the winter started the keep cracking
I appreciate your knowledge sir. You remind me of them old timers I learned concrete tips and tricks from when I started. More than 12 years doing it. I'm now 28 years old running a solid 10 man crew👍
Nice! 10 guys is a good crew size. You can get a lot done in a week with that many guys.
I'm a 30 year finishing concrete contractor thank u Mike your on the right track. Yet we never get concrete perfect
Hey, man. It sounds even inspiring :) Where are you guys located? Do you also work with low degree weather? Just curious, if concrete business is weather based and you work mostly summer / non cold temperatures?
Re-watching this as winter comes again. Thanks Mike.
I used gutter deicer cables in the re-mesh, covered, poured and contactless raised covers after.....Still had liquid condensation at 10F for a week. Kept the whole thing plugged in for three weeks...Worked great here in Minnesota.
Mike , as ive said before you put out some of the best informational vids on you tube. , we do excavation and our own concrete walls and floors, and always picking up on your information tips, thanks for taken the time to do your videos
Todd, thanks for watching! Let me know if there's anything I can do to help you!
5°F or -18°C a few miles south of the polar circle. I'm sitting in a construction site barrack, waiting for the concrete to arrive within an hour. We have put electric heating wires in the rebar nets. Pitch dark when we arrived to the site in the morning, same thing in the evening. But finally we have decent sunlight in the middle of the day. That was not the case a month ago.
We should make a CZcams series about this project.
Even in the summertime I try to hand trowel by following someone on the machine, just before it's burnt. I think the finish looks better, especially when there's drains hard to burn evenly in the valleys and around the drain. Great videos, nobody explains the process like you do
Thank You, we also hand trowel finish in the summer a lot. Especially in the shaded areas.
You kick away in 40 started concrete at age 13 once you get it in your blood you can't get it out great video happy holidays God bless.
Sure right dieing art I can never get enough of it either I work it everyday and watch these videos in the evening lol
Funny how it gets in you and you just can't stop it or do something else.
Started at 19 and decided I’m going to college😂
Who taught you ? Earl Allen is my teacher
It started raining on us today while pouring here in Australia and it got us talking/wondering about how they must do it in the snow and freezing weather else where in the world.. Now I know. Thanks for the video.
I like that you never have an over abundance of people. Watching people pour patio with 8 guys isn't always my cup of tea.
As a ready mix supplier we do not use Bag Flake Chloride. If a customer insist on using it they sign a disclaimer absolving us from any liability in the finished product of that concrete. We do offer Calcium Chloride as well as non corrosive set accelerating admixtures.
Aside from that I really enjoy the videos you put out. Showing what the industry deems the right way to order and finish concrete.
Jason, we have some ready mix companies here that don't offer the bag flake either. We do assume the liability when we put it in. In my opinion and in my experience, it does work better than the liquid accelerators. Thanks for watching and being a part this channel. Maybe someday we could collaborate on a video together!
The ready mix company’s never assume any responsibility for anything anyway, lol.
@@gnevala when any customer add any thing in the truck on site most company want to mark on the ticket it cover there butt
Im from IRELAND and I have worked on concrete pumps for 25 year's and I have never poured concrete when it's below freezing because we don't have hot water set up's but its good to see how you guys do it we don't get many day's a year below freezing that's why we are not set up for it.
Hot water freezes twice as fast as cold water.
@@rl4889 No. Hot water evaporates faster into gas/vapor, leaving less water to freeze. While the cold water evaporates slow and has more water to freeze.
A1 information in real time comprehensive at every step.
Excellent video
Much respect from NH going through this now!! 5x5 block for 90Ft antenna for the local fire department
Those hear blankets work absolute wonders
You got my subscription
Thank you, what part of NH are you from?
Southern Nh
I didn't know it can be done at that temp. That's very knowledgeable thank you for sharing.
We just did a pour in weather in cooler then freezing weather. Thanks for the tips
When we pumped concrete to pour on a hi rise floor, we always built a climate shell to enclose the floor in Alberta, Canada. If it was just freezing weather, it really didn't need heating as the curing concrete created ample heat. Our worst worry was loosing humidity inside that climate shell. Propane heater fans were set up inside the climate shell if we expected a blizzard or windy cold snap. It was not too uncommon to pump in the concrete into the climate shell when it was -30 to -40. Unpleasant? Yes. We slowed down slightly but the pour must go on without interruption. We also had to keep a guy overnight on propane watch.
On more than one occasion because of the weather and not using Styrofoam we would lay down tarps or Tyvek poly whatever we had throw about 8 inches of hay/straw on top and then the insulated blankets and the hay generates a bit of heat and keeps the frost from pushing in it’s really kind of cool and then when we show up to pour the floor and it’s still cold the substrate isn’t frozen , We do the same things for our footing lines
Do like concrete video fun ! Hats off all concrete finishers deserve respect
In 1985 Guilford County Inspections in Greensboro, NC came out to watch me fail placing concrete slabs in below freezing weather … did my homework and innovated a placement that used 6 mil polyethylene spread out on the ground , I had the concrete company heat the water in the mix and added 2% calcium chloride with air-entrainment on a 3000 psi mix … we covered the “pour” with 6 mil poly and straw ( not hay) because straw is hollow and has a far better insulator value !!! … never lost any slabs , proved all the naysayers wrong and made a $4000 bonus bringing the project in on time and below budget !!!
Our Company always use 4000 all Year Round, the Key to doing Concrete to Evaporate the Water you can pour all Winter Long. In 32 Years I haven’t Lost But One Pour in those Years. 2% it starts to Pop right away.
I'm from CAN so been doing this last couple weeks, done for the year now because its -20 where i am now but we had a couple lovely windy winter jobs last month or so. On the warmer days though with the winter mix it was setting up real quick n making for some shorter days but the basements took all day.
Waiting all day on those basements really gets hard. We just did a 1800 sf basement that we finished by hand so we could get it done by dark.
@@MikeDayConcrete Ya we were doing the same thing but still like 12 hour days enough times they suck. Another good Vid thanks Mike
@@MikeDayConcrete r FB
You are sure, a very valuable source in this information age. With great admiration and appreciation. 👍🏼👍🏼👍🏼
Hey Mike thanks for sharing your wisdom, Thanks a Bunch!
You bet!
Great video, thank you for taking the time to create it.
Your Welcome!
Tried it 4 8 years at 15 I hated concrete then I was a natural love your video. Great job
Hi Mike
ive been watching a few of these warm climate concrete guys on you tube cast and pour pretty slabs
and stuff directly on dirt. all ive ever seen is a compacted gravel base.
myself being from the midwest ive never seen anyone pour directly on to dirt
except for maybe a pre cam for road paving.
it just seems to me that that most of the stuff i see the warm climate guys do would never last more than a few midwest winters.
i guess what im saying is i respect guys like you more that have to make big pours in adverse conditions
and can mag and finish the entire job by hand if needed.
Very nice video! The steel reinforcement makes for almost a pre-stressed final product as the steel expands with the warm concrete, then contracts as it cures and cools.
That's right, never really thought of that!!
Это так не работает, у тебя арматура должны быть горячей, а не холодной.
You're the man bro! Thank you! I mean that!
Thank You!
Why don't you use a torch on the ground to thaw out the ice or heat up the ground? I do that and have never had any problems
Don't forget to tell themabout the part that you had to go back there around 10pm to put the bankets back on. Hopefully it has hardened enough that the finish doesn't get ruined by the blankets or the lumber over them..
P.s. its always a good idea to walk on the fresh concrete in your stocking feet so your work boots won't ruin the finish.. If this doesn't give you cold feet about doing concrete work, nothing will :)
Fact of the matter, cement finishing and cold weather (although possible) just don't "mix" well.
Learned a lot....don't have to pour in subfreezing weather here in Vegas...nice video, great work.
Not pouring in freezing weather is only a dream for us here in Maine. Not fun at all!
Thats good, solid work. All the best from England.
Thank you!
I use 4500 psi ,hot water(185 degrees),steamed sand and gravel, two percent pozz on a day like that up here in the Rocky Mountains in Montana. We only have non chloride admixtures ware I live.
Does that mix formula set up pretty good for you?
Wondering the same AND what's it made of ?
Thank you so much, this is great advice especially since I live and work in Canada.
We both have to pour in freezing weather. Not much fun when it's below freezing. My fingers get cold first for me.
Mike Day Everything About Concrete
Yeah not much people wake up in morning for a pour in the middle of January
Thanks 😊 for video Mike and educate us i like 👍 your video and your channel you take pride in your work you a good man and a success
Mike, you use Tapcon screws to fasten your boards? Have you ever tried a wire nail? Drill a 3/16” hole through the board and into the wall. Stick in a piece of tie wire, pound in a double head. Things hold like mad, strip with a bar or steel hammer. I’ve broken countless wood handles.
My guys really like the tapcon's. Thanks for the tip.
the whole meaning of this video was saving time by making 3 passes... nice. good job
Great video very informative!
Excellent job as usual. Cold weather always makes more work out of everything
Yes, more work and the shivering all day gets to me.
So much knowledge thank you for all your videos sir keep up the great work
Are you concerned about the calcium chloride with steel in the concrete?? Most people use non-chloride accelerator with steel reinforced concrete. I've never seen firsthand issues from using cal with steel, just curious what your opinion is, or if you have any additional info
You guys are damn good very efficient you have worked together for a while
Yes, a lot of years together.
I was hoping the concrete curing blanket to be more expensive, and suggest a tent in stead :-)
I have tented floors like this in the past. Used a big tarp and put a heater under it. It works good, just a lot of work.
I live way up in the high country of Colorado . .10,000 ft elevation. Pouring a smaller area (90 sq ft) but steps....high tomorrow will be mid 30s but when sun goes down its gonna drop fast. Low overnight like 5 degrees. Zero humidity up here at least....have ice melt ran but it's not hooked up yet
Nice work. I'm surprised that someone hasn't come up with an inflatable tent, kinda like the ones used for the kids bouncy houses in different sizes. With one of those set up, you could blow heat in and hold it, at least for a while ? Only problem I would think would be all the sharp edges from the short wall. Thumbs up.
Some type of tent would be ideal. We have made a makeshift tent out of a big tarp before. Works ok, just more work.
Thankyou. Just what I needed to see
Going to be pouring a driveway this weekend. The high will be 49 degrees the low will be 35 degrees that night. Do you recommend I cover it? I thought about plastic with bales of straw spread on top.
If temps don't get below freezing you don't need to cover it. Concrete generates some heat from hydration as it cures. It generally won't freeze unless temps get below about 28F.
We used to pour in cold weather, but it’s not worth it. If it’s cold enough for the ground to freeze we hang it up for the winter. The cold weather makes everything harder than it should be. There is nothing fun about blankets. The quality of work also goes down when it’s cold out. Nobody wants to be out there.
It is harder for sure. When our regular customers call we can't say no to them. We figure out a way to get it done.
Mike Day Everything About Concrete absolutely.
Cold weather is ok to pour in with the proper equipment. AKA ground heater....... And a good crew
Have you tried a wooden bull float in winter? My grandfather would build them. He said it opens up the pours and let's the water out so it dries faster. We don't use them anymore here because it just doesn't get that cold here anymore.
Never tried a wooden one, just magnesium.
Great video. thank you.
Thanks Joe!
Thank you for this videos ...i have one cuestión how many days need be cober the concrete sir
Brilliant video and Kwoledge
1/4" fanfold Dow styrofoam is .25 sq ft....$100 would get a thermal break from the gravel. Excellent content on this video.
That is a really good idea, would have made a world of difference on this floor.
@@MikeDayConcrete I don't know how well you could walk on it but may be able to figure it out. Put some pcs in taped together as you go. May be some rolls of R-1 stuff somewhere like that laminated bubble stuff...who knows. Look on Ebay, Amazon. Great channel. Whoops...you got mesh in there. Some do not. Still. even broken up a bit Sty would work ok I think.
I thought in an earlier video you said Styrofoam was code in Maine. That you had to use it.
Correct me if I'm wrong... but is picking up the wire and then stepping on it while screeding not counterintuitive? I see people having to demo slabs all the time and all of the wire being on the bottom of the slab... Great video very educational. Good work.
How would you do this if you had to use a concrete pump with 200 feet of hose to pump the concrete into the slab on grade post frame home?
Mike, did you know they make a beveling tool on magnesium mag for garage fronts they work great for making an even line
NH Concrete i love those bevel mags. Thats same thing we use.
Yea I know. We've just been doing it so long this way it's hard to change. I'll get one and try it though.
We use a. Board cut a notch in it for garage faces
Bet it feels like a spa with the hot mud..
also- for people who don’t know; the dimensions of the garage 28x28’.
How is the amount of concrete (yards) determined?
Old outfit I worked for was a little shy when questioned until I found an application to help with this-
Great video.. 👍🏻from NY
I appreciate you Mike thanks brother 👍
If there is snow on the gravel before hand is it common practice to use a propane torch to melt it then put the blankets on for future pouring? Our home is being built now and the walls and basement floor have yet to be poured with snow covering them. Just curious and anxious for them to get them in before it starts getting really cold. Thanks!
I know you mentioned styrofoam, but would it have set up quicker if you laid down 6mil plastic ?
How do you prevent the blankets from leaving marks in the floor ?
cure and seal . spray after your final finish. doesn't need to be a thick coat . wait till it is 100% dry. ( it wont be sticky) . that will protect against stains also
Will be pouring a patio this Friday, going to get down to 30 will it be ok on it's own or should we cover it with plastic? Its 6 to 8 inches thick and 4000 psi. Thanks
I will never forget the day poured in -30 degrees with -45 degrees wind chill man oh man what a day
What mix design did yall use and what did yall do to help it set up
@@ButchOC if I remember correctly it was 4000 psi half inch ag and added plasticizer on site we used a 1000 ft thawz all hose and hung it every 2 ft on the walls and columns then wrapped the walls and columns with blankets before and after the pour
@@ButchOC also had diesel heater blowing under the blankets surprisingly nothing froze
Hi Mike. I have a question hopefully you can answer. If I were to pour a footer, foundation and back filled for a building in the summer but not the floor until the next year. Would the winter months cause issues? Obviously it’s best to do it all at the same time but I’m looking to shell the building and pour the floor with a pump later.
Richard, you should be fine, builders do that all the time here in Maine.
Are you the same Mike day who was a judge on concrete combat for quickcrete?
Yes, same.
That's awesome, that must have been a awesome experience, I noticed you also do epoxy floors as well as pouring slabs, I finished floors for 4 5 years before starting epoxy 3 years ago. I gotta ask. Do you always use a magic trowel for your coatings or was it just with that metallic video you did? I've always done 25 30 mils or 40 45 mils
@@MikeDayConcrete is better to avoid the winter time or the concrete can be done well in snow times?
Hello .
One question ......had you poured boiling water on to the gravel before you poured made the concrete cure quicker
I went through your videos and didn't see one on what I want to do, and your sight is the only that talked about temperature of ground. I am cementing a 3 1/2 in pipe 4 feet in the ground and hole is 12-13 inches diameter. I am mounting same size pipe to it after the cement is set up. My question is I put a thermometer in hole and temp was 34 degrees. I am using fast set concrete from Menards. SKU 189-1111. Thanks in advance and if this isn't the kind of work you do once in a while, please accept my apologies.
Hey Mike! Very nice content in you page I appreciate it and please keep em coming ! One question for you: Why don't you test your concrete (slump, temperature etc. ) Especially in this aggressive environment concrete quality plays important role. Thanks.
We do if the owner asks for it or if it's in the spec. The concrete company has a quality control guy that comes around and tests on occasion. I am certified in testing also so I keep an eye on it.
It’s not Mikes job to test the slump. He can leave cylinders for the testing guy.
I use big blue cover up burn morning
Do u use halogen lights on it all night after u pour? Keep it worm or seal then cover ?
What determines whether you pour over gravel like this site rather than styrofoam?
Why not build the garage first, then you just tarp the doors and heat it, it's no more difficult to build, and it gives you the option to pour regardless of the weather. We always frame first in the winter so the area to be poured can be protected from the elements.
That was exactly my suggestion. The builder wanted nothing to do with that. I agree with you 100%
Builders! They all just about poured from the same mold. Finished sellable product, regardless of the cost to the subs or later on, the home owner. I know one who wants 4% Cal Chl six to eight months out of the year regardless of the temp. Even knowing it shortens the life of the pour. "Can't see it from my house".
What were those blue things? Some kind of heater blowers? Why did you take them away? Was it just so cold they weren’t doing any good?
🤜🤛
Yea, heater blowers. We were just drying up a couple bleed water spots so we didn't have to mag the water into the surface. Some of the bleed water just seems to hang on forever when it's this cold.
when can you put styrafoam as a base under the concrete?
Can you Ask those ready mix drivers what kind of boots they use? I need some with winter coming up wanna make sure my feet are toasty
So what %of calcium would you say the bag and a half took you to? I will be pouring in a couple days and it will be 25° and low of 15°.
How do you think they built Canada?
please do a video showing in great detail how to screed, specifically communicating with the other rodman. thank you
Have you seen my other screeding videos? I'll do one and be more descriptive.
That would be awesome I'm a new straightedge man. And get my time here and there. It like everything else old grumpy finishers get pissed and tell you to get off it but I'm s damn good wall man and edge for days on all big pours
Adding calcium on site from here on out!
Nice, it's the only way we do it.
Why not use antfreeze?
Why don't you use 1x4 treated for expansion joints?
why calcium chloride with steel? is it epoxy coated?
If it is going to freeze over night and I am
Setting fence posts, do I need to cover just the exposed mud or do I do it a few feet around the hole
Just the exposed mud should be good if it's just overnight.
What I was thinking 🤔 blankets are thee worst thing to move when it’s blowing snow having to walk across ice covered ones and it’s slicker than shit
How much money does the accelerator add to a job?
You are supposed to mop perpendicular to the screed
Hey I play this way 2 bro. I feel like I'm watching myself
Awesome, where you from!
Mike. This is tim from Ohio can I poor a drive way. At 3 inches. Only.
Foam with gravel on it ?
The ryobi p223 hammer drill/chipper ain't to shabby either. Smaller model is trash tho
Why saw cut a garage floor.... I’ve never seen it before?
It helps control any random cracks from developing later on.
@@MikeDayConcrete I get it but I’ve never seen any control joints indoor
Why didn't you put foam down
Surprised you didn't mention warm water in the mix or adding a few pounds of calcium chloride for cold weather, it's what we did in the old days.
If you can walk around the sides why would you walk through the concrete to float edges
We didn't feel like walking through the snow. It's just easier for us to use the skids.
Come on lol what are you a bunch of Sally's na just kidding I got 30 years pouring concrete I was just giving you s*** have a great day😎👍
Pls what do you call this thing
Halogen lights help do this with a generator
When would you use a 5000 psi mix?
how much calcium do you put in
It's always a little different on the amount. At least two 50lb bags in 10 yards though.
I love days like that
The older I get the less fun these days are getting.