Commercial Crack Filling
Crack filling is your first line of defense against pavement deterioration. Cracks allow water to more easily penetrate into the pavement and weaken the sub base. The freeze thaw process will widen these cracks leading to pot holes. Pot holes are a serious liability, potential trip hazards to tenants clients and employees.
Cracks which are up to 1" in width can be cleaned then filled with hot rubberized crack filler. We begin by cleaning the cracks of loose debris, vegetation and moisture with a hot air lance. A hot air lance is a combination of compressed air and a propane torch.
This process will ensure proper adhesion of the crack filling material. The crack filler is a rubberized material heated to 350 degrees when applied. This liquid material fills and seals the cracks, hardening in just minutes allowing your pavement to be open for traffic more quickly.
Individual cracks develop from pavement shrinkage, oxidation and deterioration. If left untreated, water will penetrate the pavement, cause additional cracking and damage to the sub base. Alligatoring is the next and more severe phase of cracking.
When small cracks allow water to penetrate to the sub base, the sub base will become weakened. A weakened sub base will not deflect the pressures exerted upon it. This causes tension in the pavement and results in alligator cracking. Heavily oxidized and rigid pavements will also exibit signs of alligator cracking. We do not recommend hot crack filling this type of pavement damage. Rather removal or milling and patching of the damaged pavement as well as inspecting and replacing the sub base is the suggested remedy to this pavement defect.
Reflective cracks appear in pavement that has been resurfaced. When existing cracks in an older pavement are not addressed prior to resurfacing, they will reflect through the new asphalt above. It is necessary to properly repair cracks and damaged pavement prior to resurfacing.
Joint cracks are the result of two pavement mats that are not properly bonded together at the time of construction. These joints tend to get cold during installation and will have more air voids along their length allowing for water infiltration and premature cracking.