A brilliant new creation is helping one of the best preserved places in the world. Yellowstone National Park has begun to use porous, or thirsty, concrete in walkways throughout their park. The new concrete, called Flexi-Pave, is made with stones and recycled tires, and Michelin has been helping them install it all over the park.
Speak Your Mind
Tell us what you're thinking...
and oh, if you want a pic to show with your comment, go get a gravatar!