this post was submitted on 06 May 2026
415 points (98.8% liked)

Mildly Interesting

26658 readers
72 users here now

This is for strictly mildly interesting material. If it's too interesting, it doesn't belong. If it's not interesting, it doesn't belong.

This is obviously an objective criteria, so the mods are always right. Or maybe mildly right? Ahh.. what do we know?

Just post some stuff and don't spam.

founded 3 years ago
MODERATORS
 

I could feel the heat coming off it when I stood next to the repaved section. They didn't repave the parking area at the edge. Opened to traffic again, seems firm enough to drive on at 160⁰F.

top 50 comments
sorted by: hot top controversial new old
[–] Thorry@feddit.org 99 points 3 weeks ago (1 children)

160F = 71C for the freedom challenged among us.

Seems crazy hot to open up for traffic tho.

[–] ParadoxSeahorse@lemmy.world 15 points 3 weeks ago

They can’t walk

[–] Bishma@discuss.tchncs.de 39 points 3 weeks ago

As a kid I burned the bottom of my foot (enough to cause blistering) on fresh blacktop in Palm Springs. They had just opened the repaved parking lot in the full SoCal summer heat when we pulled in to go to the bank. I took 2 steps: the first adhered my flip-flip firmly to the asphalt and the second took my foot out of said flip-flop and landed it right on crazy hot and sticky surface.

[–] over_clox@lemmy.world 35 points 3 weeks ago* (last edited 3 weeks ago) (2 children)

Even though this article says that tire rubber starts to break down and melt between 100⁰C to 150⁰C, depending on the rubber compound, I'd still prefer to protect my tires from such high temperatures..

https://thetirereviews.com/is-it-true-tires-can-melt-because-of-heat/

Edit: Those temperatures are also rather dangerous for electric vehicle batteries, which are located right under the vehicle in very close proximity to the road heat.

[–] ThePantser@sh.itjust.works 14 points 3 weeks ago (32 children)
load more comments (32 replies)
[–] varyingExpertise@feddit.org 4 points 3 weeks ago (16 children)

Unless you have a Nissan Leaf or an UpMiiGo your battery has some sort of active cooling.

load more comments (16 replies)
[–] Imgonnatrythis@sh.itjust.works 16 points 3 weeks ago (4 children)

Geez I hope they put up no pet signs. Would hate for someone to let their dog walk on this.

Since summer is coming in many parts of the world, I'll include a psa about asphalt temps being well above air temps. Good chance if you are enough of a nerd to be on Lemmy you have a laser thermo probe somewhere. Consider bringing on your walk and checking some pavement temps. Avoid walking dog if >115f 46C

I just touch the pavement with my hands every time the road surface changes. If I can't hold it there comfortably for a few seconds my dog is not going on it.

load more comments (3 replies)
[–] Treczoks@lemmy.world 16 points 3 weeks ago (2 children)

Just wait until it get twice as hot this summer.

[–] rhombus@sh.itjust.works 11 points 3 weeks ago (4 children)

Asphalt is laid somewhere around 300F, so if it truly got twice as hot it would melt the road and everyone’s tires.

[–] P1k1e@lemmy.world 5 points 3 weeks ago

Used to be a paver and I can confirm that shit is HOT, only gets worse once you hit it with water. The steam will give you blisters as you work it

load more comments (3 replies)
[–] Spacehooks@reddthat.com 2 points 3 weeks ago

Op get data!

[–] frankenswine@lemmy.world 13 points 3 weeks ago (2 children)

what is this in normal units

[–] PerogiBoi@lemmy.ca 7 points 3 weeks ago

Almost 74C!

[–] Ironfacebuster@lemmy.world 4 points 3 weeks ago (1 children)
load more comments (1 replies)
[–] kungen@feddit.nu 5 points 3 weeks ago (6 children)

Neat, you can also see where people's tyres have absorbed some of the heat.

load more comments (6 replies)
[–] trem@lemmy.blahaj.zone 3 points 3 weeks ago (3 children)

Hmm, that's interesting. Don't you guys generally use concrete for paving in the US? In building construction, you're supposed to give concrete like a month to fully harden, even though it already looks firm after a day or so.

For paving, they're likely using a hardening accelerator, so the timelines wouldn't be the same, but if building construction is anything to go by, it seems like you'd want to give it as much time as possible, not send cars on there while it's still hot. 🥴

[–] hakobo@lemmy.world 9 points 3 weeks ago

Generally? I don't think so. I think concrete gets used in heavy intersections, super busy streets, and some parts of highways/freeways, but not for all the branching streets. Smaller/less used roads and residential are generally pavement/asphalt. Though some HOAs like to use concrete for the longer expected lifespan and then don't budget for repairs so it turns to crap after a while. That said, I'm not a professional, I just live here. Not in an HOA, thankfully, but near one with terrible concrete roads.

[–] rhombus@sh.itjust.works 5 points 3 weeks ago (1 children)

Even with accelerators it still needs a few days (usually about a week) to harden to 80% strength, and it will never be quite as strong as it would be without an accelerator.

I think that’s part of the reason we don’t use concrete pavement more often. It certainly lasts a lot longer, but laying it is way more time consuming. Asphalt is ready to go within a day, just needs to cool off.

[–] BabyVi@lemmy.world 2 points 3 weeks ago (3 children)

Its uncommon to see concrete roads in the US but there are a few of them around. That being said it could be more common in some states than others.

load more comments (3 replies)
[–] Aussiemandeus@aussie.zone 3 points 3 weeks ago (2 children)
[–] pageflight@piefed.social 6 points 3 weeks ago

Topdon. I had Flir before and like this much better. For one thing, they don't watermark my images.

load more comments (1 replies)
[–] sp3ctr4l@lemmy.dbzer0.com 2 points 3 weeks ago

Yeah wtf, that's bonkers.

Ambient temp seems to be roughly 75... maybe wait till it gets down to 95, 90?

[–] samus12345@sh.itjust.works 2 points 3 weeks ago
load more comments
view more: next ›