Engineering360: "Researchers report progress in tire recycling technology"

Or you could use the energy extraction techniques of Tcmtech.

What happened to the tire shredding for re use in roads and other areas that was done several years ago. There was a company that was shredding tires in Oregon.

Personally, I like the chunked tire mulch that you can buy. It is heavier than typical mulch, so you can leaf blow it (gently) and get leaves out without scattering too much of the mulch. I found I can even run my mower over the tire mulch and it doesn't scatter very much of it.

I do recall outdoor running tracks paved with an asphalt-rubber mixture that were a joy to run on compared to standard paving or packed dirt tracks. It didn't seem like it would have been durable enough for vehicular traffic though.

I had heard about adding a percentage of tire shreds to road pavement, but never heard about the longevity of those pavements.

I did find these links:

http://asphaltmagazine.com/understanding-how-tires-are-used-in-asphalt/

https://www.fhwa.dot.gov/pavement/pubs/hif14015.pdf

https://en.wikipedia.org/wiki/Rubberized_asphalt

https://www.recyclingtoday.com/article/recycled-tires-help-fix-california-roadways/

I have not seen the chunk tire mulch. I will have to try to find some here in Wisconsin. This would be a good use and get rid of tons of tires as people use a lot of mulch.

Here is one example (not an endorsement)

https://rubbermulch.com/collections/rubber-mulch-for-playgrounds/products/brown-playsafer-rubber-mulch-75-cubic-ft-pallet-2-000-lbs

I have seen it for sale at all the big box home improvement stores in 40 lb. bags as well as at some of the "club" stores too. Usually around $8 a bag. More expensive than traditional mulch, but it lasts much, much longer.