A system for repairing roads is provided. The system includes a highly
strain tolerant, substantially impermeable, reflective crack relief
interlayer. The interlayer includes a polymer modified asphalt binder
mixed with a dense fine aggregate mixture. About 100% of the aggregate
should be able to pass through about a 9.5 mm sieve. The interlayer mix
is designed using volumetrics and verified using a Flexural Beam Fatigue
test and a Hveem Stability test. Preferably, an HMA overlay that is
compatible with the interlayer, as well as the demands of local traffic,
is placed over the interlayer so that a protected, smooth road surface is
provided. The system may delay the first appearance of cracks and the
severity of cracks for several years compared with traditional hot mix
overlays and extend pavement service life.