Asphalt pavement cracks are open doorways for water to seep and cause deeper structural damage. Cracks permit the asphalt base to be saturated and thereby cause more cracks through the expansion and contraction experienced in winter and wet months. Also problematic is that cracks allow the base to be washed away, thus causing the surface to be unsupported – this leads to even larger problems, for instance pot holes. Needless to say, cracks that are filled with hot crack fill close the “doors” and lessen this entire process of pavement failure. As neglected asphalt continues to weaken, water and weather damage reduce the life of your asphalt. Cracks that are properly sealed stop water penetration, keep moisture out providing maximum pavement protection even during the severe stress of freeze/thaw cycle and prevent costly repair. Crack filling is a yearly maintenance and we recommend an annual inspection and touch-up as required.
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Pot Hole Repair
Most potholes are formed due to fatigue of the road surface. As fatigue fractures develop they typically interlock in a pattern known as crocodile cracking. The chunks of pavement between fatigue cracks are worked loose and may eventually be picked out of the surface by continued wheel loads, thus forming a pothole.
The formation of potholes is exacerbated by low temperatures, as water expands when it freezes to form ice, and puts greater stress on an already cracked pavement or road. Once a pothole forms, it grows through continued removal of broken chunks of pavement. If a pothole fills with water the growth may be accelerated, as the water “washes away” loose particles of road surface as vehicles pass. Potholes can grow to feet in width, though they usually only become a few inches deep, at most. If they become large enough, damage to tires and vehicle suspensions occurs.