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Lobster shell patterns make concrete stronger: Australian researcher
Reuters ^ | JANUARY 26, 2021 | Jill Gralow, James Redmayne

Posted on 01/27/2021 5:12:03 PM PST by nickcarraway

Inspired by the natural, twisting patterns of a lobster shell, Australian researchers say they have found a way, using 3D printing technology, to improve the strength of concrete for use in complex architecture.

Reinforced with steel fibres, the concrete becomes more durable when set in a pattern that copies a lobster shell, according to a new study from Melbourne’s RMIT University.

Rather than use a mould, the process involves depositing layers of concrete one on top of the other, directed from a computer program using 3D printing technology.

(Excerpt) Read more at reuters.com ...


TOPICS: Business/Economy; Miscellaneous
KEYWORDS: exoskelaton; exoskeleton; lobstah; lobster
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To: monkeyshine

The perfect place for you to dance this mess around.

https://www.youtube.com/watch?v=dRuRKirloQ8


21 posted on 01/27/2021 6:49:40 PM PST by BenLurkin (The above is not a statement of fact. It is either opinion, or satire. Or both.)
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To: BenLurkin

Roam if you want to and dance this mess around with 52 girls.


22 posted on 01/27/2021 7:05:10 PM PST by monkeyshine (live and let live is dead)
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To: metmom

23 posted on 01/27/2021 7:12:24 PM PST by Daffynition (*Mega Dittoes and Mega Prayers* & :))
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To: Daniel Ramsey

No rebar; they used volcanic ash. We can use fly ash.

Interesting wiki article!

https://en.wikipedia.org/wiki/Roman_concrete


24 posted on 01/27/2021 7:22:23 PM PST by Pete from Shawnee Mission ( )
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To: Deaf Smith

How do you know they were cold joints? Didn’t sound like that to me.

Going by the results, even with this so called ‘cold joint’ process the end result was stronger.


25 posted on 01/27/2021 7:57:05 PM PST by Balding_Eagle ( Biden won, Trump got the most legal votes.)
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To: Balding_Eagle
"Going by the results"

Did they do a compression test?

A cold joint is concrete poured/placed to that already there, even if not cured at any stage.

26 posted on 01/27/2021 8:04:57 PM PST by Deaf Smith (When a Texan takes his chances, chances will be taken that's for sure.)
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To: nickcarraway

Another way for a few of the very rich to try to own all concrete pouring jobs. Those robotic pumps are going to have some shock and awe price tags on them.


27 posted on 01/27/2021 8:15:49 PM PST by familyop
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To: BenLurkin

Always tried to get my daughter’s band director to play Rock Lobster - would have been a great marching band tune (BTW that’s one of the ways you know you’re getting old - when the marching band is playing music you liked as a kid for the halftime show).


28 posted on 01/27/2021 8:29:34 PM PST by Some Fat Guy in L.A. (Still bitterly clinging to rational thought despite its unfashionability)
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To: BenLurkin

the girls are easy on the eyes even if Red does play for the other side


29 posted on 01/27/2021 9:06:23 PM PST by Chode (Ashli Babbitt - #SayHerNAME)
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To: monkeyshine

sure, why not


30 posted on 01/27/2021 9:08:50 PM PST by Chode (Ashli Babbitt - #SayHerNAME)
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To: Daniel Ramsey

My understanding is that Rebar makes concrete more resilient and tougher, while limiting its lifespan.


31 posted on 01/27/2021 11:06:49 PM PST by lepton ("It is useless to attempt to reason a man out of a thing he was never reasoned into"--Jonathan Swift)
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To: Deaf Smith; nickcarraway
Duct tape. Fixes everything. :)


32 posted on 01/28/2021 10:09:21 AM PST by Daffynition (*Mega Dittoes and Mega Prayers* & :))
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