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Old December 10th, 2007, 07:49 PM   #4341
harryc
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Dec 10 - Slurry wall

Back to the old section



Drying off ( there was an ice storm last night )




Getting ready for work next to the townhomes



Anyone know what these are ?

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Old December 10th, 2007, 07:50 PM   #4342
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thanks harryc for the shots
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Old December 10th, 2007, 08:19 PM   #4343
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correct me if I'm wrong but when you prepare concrete you use plenty of water and in these extreme temperatures isn't it going to get frozen before it gets solid? or they use some kind of special mixture
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Old December 10th, 2007, 09:06 PM   #4344
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Quote:
Originally Posted by ngeorgiev View Post
correct me if I'm wrong but when you prepare concrete you use plenty of water and in these extreme temperatures isn't it going to get frozen before it gets solid? or they use some kind of special mixture
Concrete cures - an exothermic reaction - it will keep itself warm.



For mixing they get the water out of the fire hydrant system, which is fed by pipes deep enough that they don't freeze.

It's been pretty warm so far, by end of January I should have at least one pretty picture of an ice encrusted hydrant.
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Old December 10th, 2007, 09:18 PM   #4345
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thank you harry
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Old December 10th, 2007, 10:54 PM   #4346
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You know in extreme cases of cold temps they add an antifreeze to the mixture. It's similar to the stuff in your cars engine.
Hey Harry the pictures are great. The rings are about 10' apart from each other correct? So if that is right there should be about 7 rings installed. Let me know if I'm right or wrong.
Lance
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Old December 10th, 2007, 11:27 PM   #4347
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Thanks for the pics. It's great to see the progress step by step
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Old December 10th, 2007, 11:53 PM   #4348
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AMazing updates!, thank you again for your patience by taking these pics..
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Old December 10th, 2007, 11:57 PM   #4349
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Awesome pictures!
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Old December 11th, 2007, 01:08 AM   #4350
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Harryc, thank you for all your amazing updates.This is my favourite thread along with Burj Dubai.
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Old December 11th, 2007, 02:20 AM   #4351
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Looks like the rebar on the ramp is just about set. I wonder if they going to pour the concrete very soon? I'm glad to see how much work has been done thus far with the core/hole It was just about two weeks ago the had just finished pounding the long steal piles in. now look at is it just about 12 feet deep.
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Old December 11th, 2007, 03:45 AM   #4352
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what website can you go to buy a condo?
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Old December 11th, 2007, 05:57 AM   #4353
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Gaining access to excavate the basement

I wonder if they are constructing the core hole first so that they can cut in from the sides under the floor plates as the are poured top down and have space to extract the spoil. This is I believe a top down effort? The core would be poured in the hole but would be moulded with suitable holes on each sub floor to get in to the underground area's whilst at the same time building up. They would just cut through the piling at the appropriate points, the steel at that point being supported by the core itself. It would save having to have large holes in each floor plate itself for the excavation of spoil? Just a speculation!
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Old December 11th, 2007, 06:17 AM   #4354
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There will be large holes anyway for the elevator shafts.
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Old December 11th, 2007, 05:18 PM   #4355
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Harryc your photogenic persistence is absolutely amazing. Thank you.
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Old December 11th, 2007, 07:46 PM   #4356
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Old December 12th, 2007, 02:23 AM   #4357
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Hopefully they continue the rate of work on this project all the way throw.
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Old December 12th, 2007, 02:51 AM   #4358
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I just want to say this now,

Thank' s to everyone on the scene, for the photographs, commentary, info., and coverage of the construction of this huge Chicago project.............I wish I was there to see it.!!!!!
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Old December 12th, 2007, 03:02 AM   #4359
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Not long before Chicago takes over New York as the skyscraper city on America
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Old December 12th, 2007, 06:22 AM   #4360
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Quote:
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Not long before Chicago takes over New York as the skyscraper city on America
O no, if it will ever happen, it will be still in a long time. You are forgetting how many supertalls are u/c, app, pro in New York (from the new WTC complex, girasole, moma, to the husdon proposal). There is still a long ways to do before chicago becomes the skyscraper city of america.
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