How do you inspect the tack coat before asphalt paving? Don't miss the dosage and temperature.
For municipal road paving, if the tack coat isn't done well, the bond between the new and old layers will have issues. On-site, crews sometimes want to start paving immediately after spraying to catch traffic windows, but if the emulsified asphalt hasn't broken, it's prone to shoving or delamination later. My inspection sequence is to first check if the base layer is cleaned properly; if there…