Asphalt Crack Filling in Omaha, NE

Crack filling seals individual cracks with a rubberized asphalt material so rain and snowmelt cannot run through the pavement into the base; around Omaha that base usually rests on silty loess, which erodes readily and heaves when it freezes wet. SealMaster calls moisture intrusion the leading cause of pavement failure and says unfilled cracks let water erode base materials until potholes form. December through February alone bring about 50.8 freeze-thaw days at Eppley Airfield, so a crack left open from fall to spring gets worked dozens of times. Crack repair is also one of the least expensive lines on an estimate, priced by the linear foot, as the cost page shows.

Timing matters more than most owners expect. SealMaster advises that hot rubberized crack sealant should ideally go down when air temperatures are between 45 and 65 degrees in places with cold winters, because asphalt cracks open wider as the pavement cools and narrow as it warms. Filling a crack near its widest means the material is squeezed in summer instead of stretched and torn in January. At Eppley, April and October, with normal average temperatures of 51.7 and 53.2 degrees, sit in that band; March and November highs average only 50.9 and 48.9, so just their mild days qualify.

The work is simple and unforgiving. Cracks are blown clean and dried, routed on some jobs, and filled with material heated on site without overheating it. SealMaster's guidance is to leave a thin band over each side of the crack and avoid thick ridges, because in snow country a ridge catches plow blades and tears out. Eppley averages 8.8 days a year with an inch or more of new snow, and each one brings a blade or a shovel across the pavement.

The base is why this matters so much here. The silt in the Monona-Ida soils under most of the city is exactly the fine-grained soil frost heave needs, because it draws water toward a freezing front. Water that reaches it through a crack can freeze into ice lenses that lift the pavement unevenly, which cracks it further and feeds the spring pothole season. Filling the crack cuts off the water. It does not repair a base that has already heaved, so cracks that have joined into plates, or edges that have dropped, need patching instead.

Two families of product are in use. Hot-pour rubberized sealant is standard on roads and many parking lots, according to SealMaster, while cold-applied fillers, typically a clay-filled, polymer-modified asphalt emulsion, are used on driveways and lots as well. The practical difference is equipment: hot pour needs heating gear on site and cold filler does not. Either way the cracks come before any sealcoat, which is why the two are often bid together with driveway sealing.