How to Repair Asphalt Driveway Cracks | HowStuffWorks- Fixing Cracks In Asphalt Roads ,Fixing Smaller Cracks in Asphalt (1/8 in - 1/2 in) To fill smaller cracks you should use rubberized asphalt-emulsion crack filler. Try to avoid getting any of the …Researchers are developing a new asphalt that can repair ...Researchers in Switzerland have patented a method that repairs stress-induced cracks in asphalt to prevent potholes forming in the first place and could double the life span of roads embedded with ...