en.Wedoany.com Reported - The City of Ann Arbor, in partnership with Michigan Technological University, has paved two city streets using recycled tire rubber asphalt mixture, which is expected to extend road service life by 30% or more.

According to the city, Ann Arbor residents generate over 70,000 waste tires annually, nearly half of which are incinerated in cement kilns or end up in landfills. This project aims to reduce the environmental impact of waste by converting discarded tires into road paving materials. In addition to extending road life, this rubber asphalt mixture reduces road noise, improves traction on wet surfaces to reduce accidents, provides a smoother surface to enhance vehicle fuel economy, reduces the generation of tire microplastics, and lowers future road maintenance costs. When these roads need repaving, the rubber pavement material can also be reused in new materials.

The trial, constructed by Cadillac Asphalt, has completed rubber asphalt paving on two roads: West Oakbrook from Main to Sumark, and Northbrook Place from Eisenhower to West Oakbrook. More rubber asphalt paving is planned later this year. By the end of the trial, approximately 9,300 tons of asphalt mixture will be laid, including 3,730 tons of specialized rubber tire asphalt mixture, equivalent to about 2,000 recycled passenger vehicle tires.

A research team from Michigan Technological University will use data collected from the construction site and asphalt plant to compare the performance of rubber asphalt repaved roads with traditional asphalt roads. The project is led by the City of Ann Arbor and funded by a grant from the Michigan Department of Environment, Great Lakes, and Energy through the Waste Tire Market Development Program.

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