Crack Filling vs. Crack Sealing: Choose the Best for Your Asphalt Pavement
Cracks are a nuisance in any parking lot or large paved area. They let in water, which causes further damage, and cracks can be dangerous for both pedestrians and drivers frequenting the property. Cracks in the asphalt need to be managed as soon as possible. Leaving them untreated for too long only widens the split and can lead to even more dangerous potholes.
In climates with extreme weather shifts such as Toronto, repairing cracks is even more urgent. Hot or cold weather can have adverse effects on pavement cracks. Trying to patch the cracks is not sufficient, as the weather wears down the cracks and makes any patching difficult to sustain.
There are generally two ways to repair cracks: crack filling and crack sealing. Each is done for very different purposes.
What Is Crack Filling?
Filling cracks is done through a process of using non-rubberized fillers. These fillers can be either hot or cold depending on the severity of the crack. Cold pours are used when the cracks are minimal. For more damaged surfaces, a hot pour is the better solution. For alligator or web cracking, trowel-grade material is suggested as it is a much thicker pour. Crack filling is done for non-working cracks, which are horizontal or vertical movements in the cracks of less than 0.1 inches.
What Is Crack Sealing?
Crack sealing is a similar process, but it definitely has a different purpose. Crack sealants are primarily used for what is referred to as working cracks. Working cracks are horizontal or vertical movements in the cracks greater than 0.1 inches. Sealants are rubberized and capable of flexing with the movements of these active cracks. Crack sealants are more adhesive and can withstand widening cracks. They can also prevent water or debris from seeping into the pavement.
Types of Cracks
There are roughly seven types of cracking that could occur on your pavement:
1. Transverse Cracks:
Perpendicular cracks down the centre line of the pavement.
2. Longitudinal Cracks:
Cracks that run parallel down the centre line of the pavement.
3. Edge Cracks:
Cracks that develop between the edge of concrete and pavement curbs.
4. Seam Cracks:
Cracks that spread down the joints of pavement.
5. Block Cracks:
Cracks that usually occur near the end of the lifecycle of the pavement. They are square shaped and spread four to 12 feet apart.
6. Alligator Cracks:
Multiple cracks close together that look similar to alligator skin.
7. Reflective Cracking:
Cracks in the surface caused when the pavement sub-base moves.
Lincoln Construction Group is able to handle all types of cracking. Our asphalt maintenance work in Toronto and areas outside the city makes us a top choice of many well-recognized developers and property owners. Check out some of our completed projects by clicking here.