According to the National Asphalt Pavement Association’s 2021 Industry Survey on Recycled Materials and Warm-Mix Asphalt Usage, only 2.4 percent of reported WMA was produced at a reduced ...

"Hot mix is asphalt with a tar substance in it, and that allows it to hold, stick to the ground, stick to the base of the road, and to be more impervious to water," said St. Paul Public Works ...