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Posted by latchkey 1 day ago

AI for American-produced cement and concrete(engineering.fb.com)
95 points | 75 commentspage 2
taurusnoises 1 day ago|
If it reduces the cost of concrete (which has been going crazy in NYS), have at it. If it's just another clever bot trick, save it.
Mr_P 1 day ago||
I had to double check that this wasn't an April Fools joke. The GitHub project has commits from 2 weeks ago, so it's not.

Looking more closely though, this looks a lot like the Google "AI Cookie" from 2017, which also used Bayesian Optimization: https://blog.google/innovation-and-ai/technology/research/ma...

sebastianeament 1 day ago|
Google's "Smart Cookie" indeed also used techniques from Bayesian Optimization. For some technical detail, see their write-up here: https://static.googleusercontent.com/media/research.google.c...

Our work on concrete here differs in that the problem is both 1) an inherently time-varying, and 2) multi-objective. See our write-up here for details: https://arxiv.org/pdf/2310.18288

simonw 1 day ago||
I hate April Fools day so much. Is this a joke? I genuinely cannot tell.
danbrooks 1 day ago||
It's not a joke - but it sure feels suspicious :D
triceratops 1 day ago|||
Not nearly entertaining enough to be one.
charcircuit 1 day ago||
The date on the article is March 30th.
martinclayton 1 day ago||
Wet cement is kind of sloppy, so this makes some sense.
scythe 1 day ago||
The website talks about making cement, but only describes making concrete. Making concrete involves mixing cement and fillers with water under controlled conditions. Making cement involves heating calcium carbonates and oxides with silicon dioxide or calcium silicate to form alite at a temperature of (so far as we understand) no less than 1250 C. Usually this is done with fossil fuels and any impurities in the raw materials (which are cost-constrained) go up the flue, making cement plants rather polluting. Carbon dioxide is a nearly inevitable byproduct (CaCO3 + SiO2 >> CaSiO3 + CO2) and is either captured at source (not implemented at most facilities) or released.

There is plenty of room for improvement in cement production. I'm not sure exactly how to apply AI to it but I guess I was hoping for more than this. If we are going to have the infrastructure renaissance that keeps being talked up by reformists of various stripes, we need more cement.

South America is also a surprising laggard in cement production, which is odd considering they have the materials and they need the roads. I think that environmental concerns and a continental aversion to coal might contribute.

gwbas1c 1 day ago||
I honestly thought this was going to be an April Fools gag.
seemaze 1 day ago||
First there was the rampocalypse. Then there was cementpocalypse. Let just hope the AI datacenters don't latch on to biofuel to supplement their energy requirements. It's just more profitable for farmers to sell calories to the AI overlords, the consumer food market is just a low margin grind.
alephnerd 1 day ago|
Most large scale DC projects I've know are primarily leveraging solar with grid batteries because of the low upfront cost and state incentives.
seemaze 1 day ago||
Apologies for the sarcasm. I appreciate the drive for renewables the current AI DC buildout brings with it.

I have real fears that building materials will experience the same inflationary pressures computer memory is currently experiencing. The U.S. TSMC and Intel fab construction alone in the last couple years has had an outsized impact on building costs.

elictronic 1 day ago||
The US construction industry does about 3 trillion in revenue per year. Those two fabs are something like 20 billion per year. 2% is a lot but markets can handle that just fine. Local markets will have higher prices.
gostsamo 1 day ago||
The masons just showed up their involvement with AI and everything wrong in our times. The masks have fallen. /s
ValveFan6969 1 day ago|
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