Crack Filling in Lansing, MI

Crack filling is the job of clearing debris out of asphalt cracks and closing them with a rubberized sealant, poured hot, to keep water away from the base underneath. Around Lansing its timing matters, because the freeze-thaw season here opens in October and November, before the snow settles in. The airport station's normals give October 5.2 crossing days and November 13.0, which means water that entered a crack during the rainy weeks of September gets frozen and thawed over and over before winter even starts. SealMaster's warning is blunt: cracks left unfilled let rain and moisture flow through the pavement and erode the base, ending in potholes. A filled crack is also the prerequisite for driveway sealing, because sealer alone does not bridge an open crack.

Crack repair on a residential drive follows a short sequence. Loose material and weeds come out of the crack, usually by wire brush, blower or a heat lance that also dries it; the rubberized sealant, melted in a heated kettle, is run into the crack through a wand or pour pot and struck off flush, or left in a thin band over the edges. Rubberized hot-pour material stays flexible as the pavement moves, which is the whole point in a climate where the asphalt shrinks and swells through 80 crossings a year and the ground beneath it heaves and settles.

Where the cracks are tells a crew what caused them. Long cracks that run parallel to the lawn edge are worth checking for water: turf that sits higher than the asphalt holds rain and melt against the edge, and a wet base is a weak one. A crack along the garage slab or sidewalk is a joint between two materials that move differently. On older city drives, many of them in front of houses from the 1950s or earlier, straight cracks that repeat the pattern of an older surface are reflection cracks coming up through an overlay. Pavement Interactive treats reflection cracks under half an inch wide as a crack-sealing job and wider, frequent ones as grounds for removing and replacing the layer.

The ground under Lansing adds its own movement. The USDA soil survey of Ingham County maps most of the county in associations built around Capac and Marlette loams, and Capac's seasonal water table can sit 6 to 18 inches below the surface. Wet, fine-grained soil is what frost heave needs, so drives over it can rise and settle a little each winter, and cracks reopen. That is why a spring touch-up of new cracks is a normal part of maintenance here rather than a sign the first job failed.

Timing has two good windows. Late spring, once the thaw has drained and cracks are dry, lets the filling happen right before sealing. Early fall, from September into October, catches cracks before the November crossings and the first snow, and cold weather is when asphalt contracts and cracks open widest. Either way the crack must be dry, and filled cracks should have time to set before any sealer or traffic goes over them. The price ranges cover crack work by the linear foot.