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Old 05-29-2017, 04:31 PM
 
Location: Near the Coast SWCT
83,514 posts, read 75,294,816 times
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I thought would be a cool story to read about a proposal or something. Video is short.

California is testing a cool new pavement technology. Gray not black will reflect sunlight and therefore wont be as warm for surrounding areas..

Just think about all the blacktop we have around now and how warm it gets and retains the heat. Even sidewalks now I see them using blacktop.

https://twitter.com/MarshallMoss/sta...18083051048960
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Old 05-29-2017, 07:23 PM
 
Location: Atlanta
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How does it compare to concrete? I know a TON of places in Texas use concrete instead a dark asphalt.
Here in GA there's more asphalt but it fades quickly. And most seem to have concrete driveways.
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Old 05-29-2017, 07:38 PM
 
Location: Near the Coast SWCT
83,514 posts, read 75,294,816 times
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Quote:
Originally Posted by sedimenjerry View Post
How does it compare to concrete? I know a TON of places in Texas use concrete instead a dark asphalt.
Here in GA there's more asphalt but it fades quickly. And most seem to have concrete driveways.
Not sure how it compares but I think concrete is more expensive? Or heavier?

The sun is the reason for the fading. Takes longer in northern states. But makes a good point. Isnt the fading the same as this gray pavement?
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Old 05-29-2017, 08:48 PM
 
Location: Esquel, Argentina
795 posts, read 739,233 times
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I believe it's also going to be better for tires. Less wear if the pavement has a lower temperature.
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Old 05-30-2017, 09:09 AM
 
1,292 posts, read 1,042,990 times
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Blacktop is used more as you go east, and more as you go south. When I lived in Ohio, many roads were made entirely out of white concrete squares, for example this random residential street in the town I lived in. It's not just the quiet residential streets either, here's a busier one paved the exact same way.

Just an interesting pattern I've noticed living in several places around the USA.


Anyway, I think this is really cool! Hopefully it doesn't end up being outrageously expensive.
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Old 05-30-2017, 09:30 AM
 
Location: Near the Coast SWCT
83,514 posts, read 75,294,816 times
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I wonder if one day we'll have solar panels embedded into the roads and walkways. Just think about the ability to melt snow and ice without plows or salt.
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Old 06-26-2018, 07:54 PM
 
Location: Near the Coast SWCT
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Cool tweet thread. 132F on asphalt. Looks like they needed that cool pavement idea.

https://twitter.com/NWSSacramento/st...24861188509696
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Old 06-27-2018, 04:37 AM
 
30,432 posts, read 21,248,616 times
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Quote:
Originally Posted by Cambium View Post
I wonder if one day we'll have solar panels embedded into the roads and walkways. Just think about the ability to melt snow and ice without plows or salt.
Too slick rick. Hard for cars to stop on glass.
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Old 06-27-2018, 05:38 AM
 
Location: Sheffield, England
5,195 posts, read 1,871,071 times
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Never seen black pavements in the UK. Always grey in this country.
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Old 06-28-2018, 12:35 AM
 
Location: Esquel, Argentina
795 posts, read 739,233 times
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Quote:
Originally Posted by Palider View Post
I believe it's also going to be better for tires. Less wear if the pavement has a lower temperature.
I was going to say I agree with this comment but then I realized it was me who made it. I forgot I wrote that

On top of being better for tires I'm guessing it's also better for the pavement itself. Lower temperature means less thermal expansion and contraction, so the pavement should last longer.
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