A shortage of liquid asphalt has reduced planned chipsealing projects on roads in
The product became unavailable because of a sudden halt in manufacturing at the Tesoro refinery in
Available alternatives to liquid asphalt include recycled asphalt and sealer made from recycled tires. While these products cannot be directly substituted for chipsealing, road maintenance crews will be able to used recycled products for other road repair projects, including surface sealing, crack filling and patching, according to the report.