The use of waste materials instead of raw materials for the construction of goods is without any doubts a good choice in waste assessment that allows giving those waste materials a second life and thus reducing dumping and possible pollution.
One example is the use of old vehicle tires to construct roads.
Apart from the fact that using old tires allows to reuse a material and the environmental positive side of this, some studies have shown that the asphalt made of used tires (Rubberized asphalt concrete) is more resistant, more flexible and allows the vehicles to stick better to the road.
Regarding the carbon footprint of these kind of roads, there is still a lack of information. However, it has been seen that by using tires for the construction of roads the traffic noise can be reduced around 6 dB. This is because roads made out of tires powder contribute to reduce the rolling impact of the vehicle.