Process of Making High Strength Concrete Piles. Korean PHC Pile Factory

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Process of Making High strength Concrete Piles. Korean PHC Pile Factory
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Komentar

Brian Stratton
Truly amazing engineering/production. Long time(s) ago I temped in a PVC pipe factory; later on in galvanized steel but this is incredible! & does look quite safe compared to many sketchy facilities doc'd on YT.
Kevin C
Kevin C - 
The plate and the bolts into the endplate at about the
Keshari Suthar
Incredibly complex process to build high strength reinforced concrete piles. The video editor has done remarkable job by covering each stage of this precise process. 👌👌👍👍
Murray Parkinson
I’ve always wondered, could you make the moulds with ridges, lines & groves so the finished product came out looking like wood. The reason being is it would be possible to replace historic rail or road trestle bridges with concrete poles that look like wooden bridges. They’d be stronger and last forever. I’m sure you’d only need 10 or maybe only 5 or 6 different moulds, as you rotate the poles so show a different side. They could also have flat spots for the angle beams that act as struts and crossmembers and they could be made out of concrete as well.
Gregory Harrison
I really enjoyed this video! Very educational and to the point. It was a lot better than many videos I've watched. Keep up the good work! I like the fact that you encourage people to add knowledge in the comments. 😊
Wei Zhou Wayne
Amazing engineering application. Engineers have put in careful and thorough calculation to figure out the speed of centrifugal spinning and the right amount of cement to put in to make it work. Cheers!
Paul Ledingham
I don't normally comment on videos but this time I just needed to say that is the most immaculately clean, tidy and well organised factory I have ever seen, and I've seen a lot, well bloody done!!!
Robinson Crusoe on Mars
Great film. Good comments below. Used to work concrete construction but only with regular formwork for walls, foundations, etc. you can see how the concrete came down to the tube as almost dry. this gives them the ability to form it somewhat, then the spinning spreads it to the outside without having sloshing water in the mix. It doesn't have enough water to cure so the steam is added. Very ingenious.
GoCoyote
But all of my friends have columns like that! ;) That was fun to see, and thank you and thank the workers of the company that allowed you to share in the hidden details of all that goes into our cities and buildings. While unseen, piles and structural support columns make modern buildings feasible, and their importance is often overlooked.
Grady Turner
thank you and the factory for sharing with us.... im from the US and have operated many concrete boom pump trucks (possibly another video idea?) anyhow mad respect for these guys and this production not to mention the acceptionally clean (in my opinion) work environment.... very impressed thanks again and hello from Arkansas USA
peter k
peter k - 
The cables are 'butted', these cables are then spaced correctly by the wire that is spot welded in a continuous wrap. When the end cap is fitted it also holds special bolts which have tension nuts fitted to their end. As the bolts are tightened the nuts which fit over the buttes ends of the cable are pulled tight. In similar fashion as rivet nuts are used in manufacturing. A second set of bolts fit only into the mold. After forming and curing the end cap is removed, leaving the tensioned nut. Half of the nut has threat left exposed, which are seen at the end of the vid and will be used in connecting the pile.
Garrett Agustin
It’s pretty crazy how long of a pipe they can make and the process is completely different from what I’m used to
ReadTheShrill
The steam curing is probably needed for strength. Concrete always cracks as it cures - there's no way to completely stop ALL cracking. If it develops large cracks, the concrete will be weak, but if it only develops micro cracks that you can't even see, it will be MUCH stronger. One of the ways you can minimize cracking is by keeping the concrete wet while it cures. That's why when they pour concrete driveways, it's best to keep misting water on them for a day or two. It will increase the strength of the concrete tremendously.
Gabe
Gabe - 
I have a degree in materials engineering, and have worked in concrete prestressed bridge beam construction. The comments below are correct. The steam aids in curing the concrete. The base plates are used to tension the steel rebar core. These both help speed the process and make for a much stronger end product. Steel is very strong in tension and concrete is very strong in compression. When you combine the two strengths of each you get an even stronger more flexible end result.
Kswis
Kswis - 
As I'm sure others have stated, the steam HELPS cure or harden the concrete it will take a whole to fully cure. My favorite part was watching how the cages are made. Very cool stuff thankyou for sharing
welshman2081
Hi, I found the video interesting. Many years ago I was involved on construction sites, the pilling was called Friction Piling, the rig was set up bored the hole depending on the depth required, and pulling out the steel cage was lowered in followed by the center pipe injecting the concrete. these were done in clusters, then the on-site engineer would check the sounding of the piles with an instrument, following on the cluster of piles would be jacked off ready for the pile cap, then shuttered for concrete, sometimes this was done in groundwater due to site conditions, this was roughly how I remember it being done, I am sure other more qualified people will add some comments, this was my experience in the 1980s. Regards welshman2081
Tom Conner
Progress Energy, formerly Florida Power, now Duke Energy, replacing the old cedar poles and upgrading the 96kv to115kv x3 transmission lines behind my ex's house, with new concrete poles the auger was 6' in diameter, and they were set at a minimum of 30' below grade I believe, and the structures were +100' above grade, the clevis used to hold the lifting strap weighed 200 pounds (just an estimate might have weighed more) what an awesome project I peered down one of the bored holes, and realized that if you fell in, you were dead the one I was looking in was about 40' deep, (In the Highlands) they weighed (O may be remembering wrong) 90 tons? Not 100% positive, but they were way heavier than the 3-1/2 - 4-1/2 foot cedar utility poles they took out. Colossal Crane, impressive!
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NikeaTiber
Re: your questions during the video
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