This doesn't work
this post was submitted on 02 Aug 2026
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It doesn't fully work if you add enough sugar it technically would but all it will do is just slow the setting process
Yup, people who drive concrete trucks often keep a couple liters of soda to add to the load if they run behind.
Keeps it from setting up in the truck, but that's it.
Why does this work, exactly?
It doesn't! (ish)
Sugar can slow down the hardening of concrete, but this is too small of a concentration and even if you do increase the concentration it still hardens which (depending on the application) does not ruin it.
Yes from what I can find, depending on the type of concrete, it takes 4-30lbs of sugar per ton. The point is not to keep it permanently plastic, it will set, but its structural integrity is greatly compromised and it will crumble under stresses far, far, lower than it will need to deal with.
So now you have a prison which will catastrophically collapse upon the prisoners?
The structural issues would mean they could not get to that point in construction
There's like a thousand caveats to this though just as an aside. If someone realizes the concrete is tampered with, they're probably tossing the whole batch. It's better to be safe than sorry and they probably don't have time to wait for the lab report on what got added to the mix without their permission.
Not that I'm recommending that people do this, but if you wanted to fuck up concrete I'd think going for a compound that makes it cure faster would be the way to go. Too fast leads to more heat which leads to fractures in the concrete from the intense heat.
Salt. Salt will completely fuck concrete.
There were Chinese construction companies that cut corners and used beach sand instead of more expensive river sand.
The buildings the made are all called Tofu towers or something similar, because you can walk up to the ones still standing and pull chunks off, like they were made of tofu.
what if I drink the concrete before it hardens? will that work?
I'm not a doctor but I don't recommend it.
When sugar is added to Portland cement paste at the onset of mixing, hardening may be delayed indefinitely.
Sugar is added to concrete to delay delay curing and improve compressive strength but after 0.06% sugar by weight, compressive strength starts to decrease and after 0.08% sugar by weight setting times dramatically increase.
If you add two pounds of sugar to literally one ton of concrete, it will ruin the concrete and make it unable to set properly. This was used by the French anarchists to resist prison construction.
Is this to stop the Suburban Rail Loop for some reason?