some of the biggest pours since Trump i suppose

which is weird because since Trump there have been a lot of big pours at my apartment also.

:eeekk::eeekk::eeekk::eeekk:

Never considered this angle. Will the tower line up with MCClurg court? That would be a wicked terminus for this budding view corridor

It will also terminate LSD opposite the already awesome Field Museum view from the South. It will also be dead ending Wacker from the West where it will soar above the 20-30 floor buildings and Mather Tower in the foreground. I'm most looking forward to that angle as I have a feeling there will be some Trump-Wrigley style echo views aligning Mather's thin needle and the topmost skinny portion of Vista.

Renderin by Ryan 81:

http://i1272.photobucket.com/albums/...psd3b8a1d3.jpg

The mat slab pour is scheduled for this Saturday.

Do you know what volume we are talking about for this one? Looks like an incredibly thick mat.

I heard around 4,000 CY

Which is about 400 cement trucks?

Wow.

Do they remove the scaffolding supporting the upper layers of rebar before the pour, or does it get incorporated into the mat?

Attn BVic, Solar, Harry, Schell, JMT. Calling all photogs. I just don't want anyone to miss this. We need all angles.

Can we make a kickstart or donation page for all these photographer's so we can at least get them some lawn chairs, pizzas and a case of beer for the time they spend for a pour this size. It's going to be epic, thanks in advance fellas.

^Haha yes! Just realized I forgot to include the creme de la creme, NICK! Apologies to anyone else I neglected to mention in the call to mass. God speed, brethren :cheers:

Sadly, I can't be there. (took more pics yesterday, because....well, I had to. http://wp.me/p7uLxw-2aP )

I'll likely make it down armed with an iPhone 7. Not the best camera, but hopefully someone with real equipment can make it down as well

As someone who knows very little about cement, I was wondering if cement pours ever have to be rescheduled because of super cold weather.

Obviously, tomorrows forecast weather should present no major issues.

But if we were in the middle of a polar vortex, would everything go smoothly if the temperature were 10 or 20 below zero?

They poured 150 N Riverside when it was well below zero so yes they can do it when it is very cold. Additives have to be added to the cement.

Weather can affect the curing but there are additives that can be used to help counteract the temperature. (Both hot and cold) These additives help speed or slow the curing process to offset temperature influence

For a pour of of 4000cy, the concrete curing will produce a fair amount of heat. The conditions will be more problematic for the people and machines working in them.

That said, rain or snow is more problematic than temperature. A batch of ready mix concrete is usually has a specific amount of water that can be added before it is no longer viable. Heavy rains for large element pours are show stoppers.

And, sorry to be pedantic, but they pour concrete not cement. Cement is a powder, but an ingredient in concrete.

Ughhh. I'm heading out of town tomorrow afternoon. Any thoughts on how early they start work on a day like this? I'd love to snag few photos before I have to get home and pack...

P.S. Got to check out the lobby and rooftop terraces at 150 last night for sunset/blue hour. Not sure I'll get the edits done before I head out, but will have lots of cool view shots soon.

Ah. I tend to call everything cement. For instance, I guess I should say "concrete sidewalk" instead of "cement sidewalk". But I don't.

Excited for the first massive pour.

Open question: What firm is the structural engineer for Vista?