Maintaining road surfaces not only makes for smoother riding but a new study says it also helps the environment, reports Rutgers Today.
The study led by Rutgers University’s School of Engineering determined that extending the life of pavement when it reaches early stages of failure can reduce greenhouse gases, particularly carbon-dioxide, which are blamed for contributing to climate change.
“Pavement preservation leads to significant environmental benefits due to the improved surface condition, which results in smooth pavement, saves energy and reduces user costs,” says study lead author Hao Wang, associate professor in the Department of Civil and Environmental Engineering at Rutgers University-New Brunswick.
The study determined that a thin asphalt overlay of up to 2 inches reduced carbon-dioxide emissions by 2 percent, the most of the repair methods studied. Researches attributed the emissions reduction to the overlay’s ability to reduce road roughness. The study also examined using chip seal, slurry seal and crack seal methods. Crack seals with rubberized asphalt or polymer-modified asphalt with filler yielded the lowest reduction of emissions, at half a percent. Click here to continue reading…
Credit: Don McLoud | Equipment World’s Better Roads