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Wilshire Grand Breaks Record For Largest Concrete Pour
CBSLA.com) — ^
| February 16, 2014 1:00 PM
Posted on 02/16/2014 4:31:57 PM PST by BenLurkin
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To: RightOnTheBorder
I understand from both civil engineers and concrete companies that all concrete indeed cures forever.
But for max. strength, it has to cure a certain percentage, and that can be delayed with too large a pour......
21
posted on
02/16/2014 5:37:27 PM PST
by
Arlis
To: mountn man
I can’t believe they did pours in inches at a time. Sheesh, they’d still be pouring the thing today. I’m thinking more like 10 or 20 ft of height at a time. Reasonable balance of required form strength and progress rate.
22
posted on
02/16/2014 5:39:41 PM PST
by
Still Thinking
(Freedom is NOT a loophole!)
To: max americana
7th and Fig? They didn’t tear out The Pantry, did they? Great restaurant. My uncle tiled the place.
23
posted on
02/16/2014 5:46:37 PM PST
by
Still Thinking
(Freedom is NOT a loophole!)
To: Still Thinking
I think The Pantry is at about 4th or 5th, isn’t it?
24
posted on
02/16/2014 5:47:12 PM PST
by
Still Thinking
(Freedom is NOT a loophole!)
To: BenLurkin
This building is
1,100 tall and is being constructed in earthquake country. Hello??
25
posted on
02/16/2014 5:48:00 PM PST
by
upchuck
(Stop this abuse now! Get behind Convention of States: http://bit.ly/1ak1Iz9)
To: RightOnTheBorder
Actually, the damn concrete IS STILL curing.
26
posted on
02/16/2014 5:49:09 PM PST
by
mountn man
(The Pleasure You Get From Life Is Equal To The Attitude You Put Into It)
To: RightOnTheBorder
It was always my understanding that if you pour too much concrete at once the heat would make it take forever to set. I read the reason they poured the Hoover Dam in sections is that if they had poured it all at once it would still be curing today. They used cooling pipes and pumped chilled water through them. They also poured the concrete in sections. Supposedly the concrete is still curing.
27
posted on
02/16/2014 5:49:41 PM PST
by
Moonman62
(The US has become a government with a country, rather than a country with a government.)
To: Still Thinking; mountn man
You can see the men inside the forms.
Looks to be at least 6-8' high.
28
posted on
02/16/2014 5:49:56 PM PST
by
digger48
To: Still Thinking
According to wikipedia regarding Hoover Dam: “Concrete cores were removed from the dam for testing in 1995; they showed that ‘Hoover Dam’s concrete has continued to slowly gain strength’.” So, it seems to still be curing. I’ve read that somewhere else.
29
posted on
02/16/2014 5:50:01 PM PST
by
tenger
(It's a good thing we don't get all the government we pay for. -Will Rogers)
To: SampleMan
And because when concrete sets up, its an exothermic ( heat producing) process, deep inside Hoover it’s still HOT. The dam actually has hundreds of miles of piping inside the concrete..water runs through it to cool it..
30
posted on
02/16/2014 5:50:58 PM PST
by
ken5050
(This space available cheap...)
To: Still Thinking
31
posted on
02/16/2014 5:52:30 PM PST
by
ThomasThomas
(Is it legal to wire tape the NSA phones?)
To: Still Thinking; mountn man
“...concrete blocks in columns were poured, some as large as 50 feet (15 m) square and 5 feet (1.5 m) high. Each five-foot form contained a series of 1 inch (25 mm) steel pipes through which first cool river water, then ice-cold water from a refrigeration plant was run. Once an individual block had cured and had stopped contracting, the pipes were filled with grout.”
http://en.wikipedia.org/wiki/Hoover_Dam
32
posted on
02/16/2014 5:54:08 PM PST
by
digger48
To: upchuck
Look at the bright side: If it comes down, lots and lots of ‘Rats are gonna get squished.
33
posted on
02/16/2014 5:54:12 PM PST
by
Trod Upon
(Every penny given to film and TV media companies goes right into enemy coffers. Starve them out!)
To: Still Thinking
I think that’s now called Engine No 28, and it’s right after you get off the subway or Red Line. If that’s it, then it’s still there.
34
posted on
02/16/2014 5:54:36 PM PST
by
max americana
(fired liberals in our company last election, and I laughed while they cried (true story))
To: upchuck
When the Big One hits — some water is likely to get sloshed out of that 73rd floor pool.
35
posted on
02/16/2014 5:58:28 PM PST
by
BenLurkin
(This is not a statement of fact. It is either opinion or satire; or both.)
To: Still Thinking
The buckets they used to transport the concrete was 4 or 8 yd dump buckets. The concrete was a very dry mix and had a very short set up time. If the crane operators were too slow, the concrete could set up in the bucket. For this reason, the operators were the highest paid workers, ensuring they had the best. 7 "puddlers" with shovels, would then scoop and push the concrete around and men with vibrators would vibrate out the voids.
By the time another bucket would arrive, the previous concrete pour would already be setting.
36
posted on
02/16/2014 6:04:15 PM PST
by
mountn man
(The Pleasure You Get From Life Is Equal To The Attitude You Put Into It)
To: digger48
The buckets containing concrete were 4 to 8 yds. 8 yds= 216 cu ft
If each area is, lets say 20' x 20', that's 400 sq ft. That means each bucket would drop 6" of concrete.
37
posted on
02/16/2014 6:11:24 PM PST
by
mountn man
(The Pleasure You Get From Life Is Equal To The Attitude You Put Into It)
To: Still Thinking
The Pantry is a block south of there — was still in business several years ago.
38
posted on
02/16/2014 6:13:02 PM PST
by
BenLurkin
(This is not a statement of fact. It is either opinion or satire; or both.)
To: mountn man
I wasn’t disagreeing.
with all the rebar and cooling pipe and only dropping in 8 yd at a time, It would have been near impossible for someone to get poured over
39
posted on
02/16/2014 6:17:53 PM PST
by
digger48
To: mountn man
Oh yeah, inches per bucket load, sure. I was talking about the depth of concrete that would be liquid at one time.
40
posted on
02/16/2014 6:20:07 PM PST
by
Still Thinking
(Freedom is NOT a loophole!)
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