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(BBC-US)   India uses waste plastic - plastic bags, bottle tops, discarded polystyrene cups - to build their roads. A ton and a half in every mile   (bbc.com) divider line
    More: Cool, Incineration, Plastic, Road, Carbon dioxide, The Road, tonnes of plastic bags, Trail, Plastic recycling  
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571 clicks; posted to STEM » on 03 Mar 2021 at 9:03 PM (10 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



7 Comments     (+0 »)
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2021-03-03 8:34:26 PM  
I predict less than stellar results. Does it flake off and cause air and water pollution? Does the PVC in there emit dioxins?

I think what you want to do is burn the plastics at very high temperatures because you KNOW you can do that cleanly and you can monitor any nasties. Use the ash for whatever. Then take the oil you save and use that for asphalt because you KNOW what is in the oil and asphalt.

I guess I am saying what Egon said, "Don't cross the streams."
 
2021-03-03 9:13:40 PM  
1.5 tons per mile isn't much.
 
2021-03-03 9:29:18 PM  
1.5 tons? Isn't that a couple minutes waste in places like Dehli, NY, or Paris?

I'm guessing we need a couple billion miles worth of roads then.
 
2021-03-03 9:52:54 PM  
Meanwhile, in Brazil, Jair Bolsonaro unveils his plan to stop beach erosion with plastic.

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2021-03-03 10:28:48 PM  
Does it pollute in other ways? What's the carbon footprint like? How durable is it?

Interesting stuff, but there's always an unintended consequence.
 
2021-03-03 11:20:34 PM  
They build their rivers with the same, at much more than 1.5 tons/mile.
 
2021-03-04 4:23:35 AM  

2fardownthread: I predict less than stellar results. Does it flake off and cause air and water pollution? Does the PVC in there emit dioxins?

I think what you want to do is burn the plastics at very high temperatures because you KNOW you can do that cleanly and you can monitor any nasties. Use the ash for whatever. Then take the oil you save and use that for asphalt because you KNOW what is in the oil and asphalt.

I guess I am saying what Egon said, "Don't cross the streams."


The first thing I though of when I read the headline was "nice, more microplastics in the environment due to wear and tear when cars drive over the road"
 
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