How to Fix Asphalt Crack Repair Problems
There's nothing more satisfying than repairing an old parking lot full of cracks and potholes. But what should you do when the customer calls you a day or so later telling you that there have been some problems with the cracks you've repaired?
Don't panic. Asphalt crack repair problems are not the end of the world, and it's easy to fix them. Discover the ways you can repair these common problems in our blog post below.
Problem 1: Tracking
Tracking melted crack fill is one of the most common post-repair problems you'll encounter as you gain more experience in the business. This is caused by two things: using substandard crack fill and overheating crack sealing material.
First, let's talk about substandard crack fillers. Unfortunately, the market is awash with low-quality crack fillers that are usually sold in some big-box retailers. These products contain insufficient amounts of rubber, so their adhesion and overall performance are sometimes subpar.
To prevent tracking, make sure that you source your crack filler and other supplies from legitimate retailers like Action Seal.
The second cause of tracking is overheating the material. The ideal melting temperature of hot-pour crack fillers is at 400°F (204°C). Anything beyond this will burn the rubber out of your crack sealant, leaving behind an oily substance that doesn't adhere to the cracks very well.
When using an asphalt crack filler machine to melt and dispense crack sealant, we recommend that you monitor the thermometer constantly to make sure that the temperature doesn't exceed 400°F (204°C). Never leave the machine unattended, and adjust the temperature constantly to prevent overheating.
But if there are track marks on the pavement already, simply put a light dusting of sand on the sealant to prevent it from sticking to crack filler machine wheels, car tires, or shoes. You can also reheat the material to the right temperature before reapplying the sealer into the cracks.
Problem 2: The Bottomless Pit
You've probably encountered this one before. You're filling a crack thinking that it's just shallow, but then it goes on and on like there's an abyss below. That's what we call a bottomless pit.
Bottomless pits occur when water seeps deep into the foundation after cracks appear on the pavement's surface. This slowly erodes the pavement's foundation and creates a cavern underneath that can be hard and costly to repair.
If you're repairing a bottomless pit, make sure to put some sand into the crack first before filling it in with crack filler up to 1/2" deep.
Problem 3: You Used the Wrong Crack Fill
Using the wrong kind of crack fill can also cause crack repair problems later on. To prevent this from happening, always use the correct sealer for the cracks you're dealing with.
Hot-pour crack sealers, for example, are perfect for linear cracks. This material bonds to the sides of the crack, ensuring a tight seal between the narrow fissure.
But if you're dealing with alligator cracks, then it's best to use cold-pour crack fillers like Gator Patch. This material functions like mortar, filling the shallow cracks while creating a flat surface after application.