China develops cement that cools itself, drops temperature 9.72°F during day

Interesting Engineering ^ | 08/19/2025 | Prabhat Ranjan Mishra

[liberalh8ter]

Replacing a slab is going to be a whole lot harder than replacing your drywall. America needs to remember the whole drywall fiasco.

[alternatives?]

Because China is so good at building construction.

[Dr. Zzyzx]

Cement is a gray-green powder. I think the the word they’re groping for is concrete.

[egfowler3]

Interesting, very interesting, now, where did I put my hip waders??? (The stuffs getting pretty deep in here.)

[Red Badger]

https://freerepublic.com/focus/f-chat/4335856/posts

[dragnet2]

Of course the concrete will never cure properly.

[mewzilla]

Perfect for use with its vermicelli rebar.

[zeestephen]

Re: "Researchers from China have developed a new type of cement..."

Which USA funded university graduate school did they steal it from?

[Steely Tom]

Tofu dreg.

"Tofu-dreg" or "tofu-dreg project" is a term used in the Chinese-speaking world to describe a poorly constructed building, often a result of corruption and substandard materials. The name comes from the comparison to soft, mushy tofu, and it gained prominence after the 2008 Sichuan earthquake, when many newly built schools collapsed while older buildings nearby remained standing.

[GingisK]

Can it be drilled with a Popsicle stick, like their regular concrete?

[Mark17]

Because China is so good at building construction.

Yes, maybe they can now stop all those buildings from collapsing.

[EQAndyBuzz]

“ Which USA funded university graduate school did they steal it from?”

Stanford.

[Skywise]

This is outright shoddy writing.

I suspect the concrete didn’t “cool” by 10 degrees, rather it heated up 10 degrees less in the sunlight because it was reflecting most of the light. The problem is that it doesn’t stop general heat saturation (if it’s hot outside the concrete is still going to get hot) this also would be bad in winters…

[VTenigma]

Sure they did.

[ifinnegan]

“ Researchers from China have developed…”

Generally anything that follows these words in news reports is bs.

[dragnet2]

That’s made in China too.

[catnipman]

but can it ALSO cure alopecia and halitosis?

[blitz128]

Maybe they should try using some of this in their tofu dreg construction lol

[sauropod]

Bkmk