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Super-Strength Concrete Ingredients?

12/28/2007 2:25 PM

I noted here within the last couple of months some comments regarding the development of super-strength (~60,000 psi) concrete in Iran. More recently, the construction of the Trump Tower in Chicago was highlighted, and mention was made of super-strength concrete being used in this project.

Does anyone know what the key secret ingredients used in the production of such concrete are likely to be. I'd love to be able to use a few drops or pinches of these per bag of ordinary Sakrete to come up with some revolutionary new products.

Thanks.

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#1

Re: Super-Strength Concrete Ingredients?

12/28/2007 3:15 PM

"comments regarding the development of super-strength (~60,000 psi) concrete in Iran."

Any guess why Iran might be doing that? ;-)

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Active Contributor

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#2
In reply to #1

Re: Super-Strength Concrete Ingredients?

12/28/2007 11:28 PM

Perhaps they wish to try out our Bunker-busters.

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#6
In reply to #2

Re: Super-Strength Concrete Ingredients?

12/30/2007 8:59 AM

Or perhaps protect themselves from some moronic engineers!

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#4
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Re: Super-Strength Concrete Ingredients?

12/30/2007 8:20 AM

YES, I COULD GUESS..BUT IT DOES NOT GET ME ANY CLOSER TO A MEANINGFUL ANSWER, DOES IT?

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#5
In reply to #1

Re: Super-Strength Concrete Ingredients?

12/30/2007 8:55 AM

I have a very good idea why, but that answer has nothing to do with my question, does it?

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#3

Re: Super-Strength Concrete Ingredients?

12/29/2007 8:31 AM

Sakrete advertizes 7000 Psi concrete. Puts a condition <over2" THICK>

USSR GOST had a 700 Grade Concrete=10,000PSI

Possible with :

  • Best pozzolana superstrength/superfine cement with correct % of Alite/Belite,
  • Highest stregth rock chips(or cast iron cylpebs) well graded in size/fracture
  • Sharpest Quartz sand - again well graded granulometrically
  • Minimum- water MIX rammed in with super-plastificatorsTO LEAVE NO VOIDS
  • Curing with puritanical zeal for as long as possible--or Autoclaving it all

Who needs all the strength?--Whoever :

  • wants to do the best-at the least cost.
  • wants to match the higher and higherstrengths available from steel reinforcements

why

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#7
In reply to #3

Re: Super-Strength Concrete Ingredients?

12/30/2007 9:13 AM

Thank you MUKULMAHANT! Your anser may indeed be pointing in the right direction.

I should add that the Trump project presumably required a fairly rapid cure rate, and the 4-5 SECRET ingredients were metered into multi-ton batches as ounce quantities. As a chemist, I believe such quantities could only serve to catalyze various parts of the quite complex reaction process to provide concrete. Which parts of the process may not be known in as much as very little of the process has been deciphered even though it is an ancient recipe.

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#8
In reply to #7

Re: Super-Strength Concrete Ingredients?

12/30/2007 2:49 PM

I recall reading or seeing a story on the tube regarding the Great Wall of China. They discovered, after many years of trying, that the reason the mortar was lasting longer than the bricks was the additive they put in the mortar--rice flour.

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#9
In reply to #8

Re: Super-Strength Concrete Ingredients?

01/10/2008 11:01 AM

One Secret Ingredient that the chinese used in the Great Wall of China -

Was the bodies of the dead chinese that died working on the project.

If the Iranians are using the dead Christians in their concrete, I wonder whose bodies Trump is using to hep out on his Chicago project?

Maybe Trump is using Democrats who will vote for Hillary in the next election?

Comments are welcome....

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Anonymous Poster
#10
In reply to #9

Re: Super-Strength Concrete Ingredients?

01/10/2008 11:49 AM

Thanks to you idiot engineers for another useless comment!

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Anonymous Poster
#11

Re: Super-Strength Concrete Ingredients?

01/03/2010 4:51 AM

Wash ingredients (exect cement and additives, of course) with spring water and allow to completely dry. Fresh coco water being used instead of water to mix concrete.

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anicholas (4); Anonymous Hero (1); Anonymous Poster (3); av_nut (1); goosemydog (1); MUKULMAHANT (1)

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