Started By
Message
What causes these "comet" marks on the road?
Posted on 5/19/15 at 6:30 pm
Posted on 5/19/15 at 6:30 pm
7
Posted on 5/19/15 at 6:36 pm to genro
It is rust
Posted on 5/19/15 at 6:39 pm to genro
rebar
Posted on 5/19/15 at 6:42 pm to zou_keeper
I think I get it.
A divot comes out of the road, exposing a small patch of rebar, when cars run over it, it spreads the rust. Right?
A divot comes out of the road, exposing a small patch of rebar, when cars run over it, it spreads the rust. Right?
Posted on 5/19/15 at 6:55 pm to genro
I've never seen a road poured with rebar in it.
They've got to be marks from little meteorites hitting the road. Search the areas surrounding the marks and see if you can find the space junk. They might sell on ebay.
They've got to be marks from little meteorites hitting the road. Search the areas surrounding the marks and see if you can find the space junk. They might sell on ebay.
Posted on 5/19/15 at 7:04 pm to Mizzeaux
Yeah sitting around watching a road get poured with rebar is a totally normal thing to do and talk about. You got me.
This post was edited on 5/19/15 at 7:06 pm
Posted on 5/19/15 at 7:09 pm to genro
The rust spots are the result of metallic minerals, called pyrites, that contaminate the stone used to create asphalt. Asphalt pavement allows vapor to transmit, or breathe through them. When the mineral pyrites become wet, they rust and bring the stains upward to the asphalt surface.
Posted on 5/19/15 at 7:11 pm to genro
Is that asphalt or concrete?
If it's conc it's probably rebar that was left to high and is rusting.
If it's asphalt it's some ferous metal that has been embedded into the surface either from falling off some vehicle or is a piece of the aggregate that is high in iron content.
There is no rebar in asphalt.
If it's conc it's probably rebar that was left to high and is rusting.
If it's asphalt it's some ferous metal that has been embedded into the surface either from falling off some vehicle or is a piece of the aggregate that is high in iron content.
There is no rebar in asphalt.
This post was edited on 5/19/15 at 7:47 pm
Posted on 5/19/15 at 7:21 pm to Agforlife
It's asphalt. There are divots in the head of the comet
There aren't many concrete roads anymore are there
There aren't many concrete roads anymore are there
Posted on 5/19/15 at 7:27 pm to genro
its tobacco juice that got spit out the window of the pickem up truck on the way to walmarks. errbody knows that!
Posted on 5/19/15 at 7:36 pm to Agforlife
quote:
If it's asphalt it's some ferous metal that has been embedded into the surface either from falling off some vehicle or is a piece of the aggregate that is high in iron content.
Posted on 5/19/15 at 7:45 pm to genro
quote:
There aren't many concrete roads anymore are there
We pour em all the time.
Posted on 5/19/15 at 7:48 pm to Agforlife
I-10 back in the day was concrete the whole way. With the gap every 20 yards. Obnoxious
Posted on 5/19/15 at 7:52 pm to genro
quote:
It's asphalt. There are divots in the head of the comet
Like this? It happens to just about all asphalt blends. This is an example of a tennis court made with asphalt.
Posted on 5/19/15 at 7:55 pm to Kentucker
Yeah there's little chunks of road taken out. You could stack a few pennies in the biggest one.
Posted on 5/19/15 at 8:03 pm to genro
quote:
y genro
I-10 back in the day was concrete the whole way. With the gap every 20 yards. Obnoxious
that gap is the expansion joint and it was every 20 feet it's still concrete they just overlay it with asphalt when the concrete starts to wear. When the concrete finally deteriorates enough they will remove it and replace it. You have to understand an interstate highway is poured 12 inches thick with 2 mats of #8 bar on no more than 12 inch centers, so it's a significant job to remove and replace. #8 bar is 1 inch diameter
Posted on 5/19/15 at 8:10 pm to Agforlife
Road expert 
This post was edited on 5/19/15 at 8:11 pm
Posted on 5/19/15 at 8:16 pm to genro
The company I work for builds bridges and large industrial foundations but if that gets slow we will build roads to keep everyone working.
Posted on 5/19/15 at 8:46 pm to Kentucker
Where'd you get that copypasta?
Page 1 of 2
Popular
Back to top
Follow SECRant for SEC Football News