Crack Sealing Simplified
Asphalt crack sealing is the process of filling or sealing cracks in asphalt pavement to prevent water from penetrating the sub-grade and causing further damage to the pavement. Cracks in asphalt pavement can be caused by a number of factors, including weathering, heavy traffic, and the natural aging process of the asphalt.
HSC’s crack sealant is a single-component, hot-applied, self-leveling sealant that is easily melted and applied. It forms a flexible, resilient, non-tracking seal suitable for use on highways, parking lots, and driveways. Our sealant is formulated specifically to avoid tracking or pulling up on vehicle tires. Traffic can resume in as little as 20 minutes in ideal conditions. This means that traffic can resume quickly, minimizing disruption to businesses and other activities, ensuring that the pavement remains safe for vehicles and pedestrians alike.
Quality Material and Application Process
HSC’s crack sealant material is manufactured into solid blocks of rubber which we melt to a temperature of 350-400 degrees using our oil jacketed continuously agitated melters. This process ensures that the material is heated evenly and mixed thoroughly to maintain consistent quality. Other contractors often use direct fire materials for their crack sealant, which is inconsistently heated, not agitated or mixed, and unevenly applied on the pavement. This method results in poor quality sealing that can quickly deteriorate, leading to costly repairs. HSC’s dedication to using quality materials ensures that our customers receive the BEST VALUE!
Some signs that crack sealing is needed include visible cracks in the pavement, pooling water on the surface, and vegetation growth in the cracks. If left unaddressed, these cracks can lead to more serious damage, such as potholes and base failure. If you notice any of these signs, it’s important to address the issue as soon as possible. HSC Pavement Maintenance offers free crack sealing estimates and can help you determine the best course of action for your pavement. Don’t wait until the damage becomes more severe – Choose HSC and choose the BEST VALUE.
What are some types of asphalt cracking?
There are several types of cracks that can appear on asphalt pavement. Here are some common ones:
∙ Alligatoring or Fatigue Cracking:
This is a series of interconnected cracks that resemble the scales of an alligator’s skin. It is typically caused by repeated traffic loading and aging of the asphalt.
∙ Reflective Cracking:
This type of crack occurs when cracks appear in the underlying layer of asphalt or concrete and are reflected through the surface layer.
∙ Cracks Caused by Pavement Movement:
These cracks can be caused by several factors, including freeze-thaw cycles, settlement, or expansion and contraction due to temperature changes.
∙ Longitudinal and Transverse Joints and Paving Seams:
These are the areas where two sections of asphalt pavement meet. Over time, these joints can crack due to traffic loading and weathering.
If you notice any of these types of cracks on your asphalt pavement, it is important to address them as soon as possible. Ignoring them can lead to further damage and more costly repairs down the line. HSC Pavement Maintenance can provide a free crack sealing estimate to help prevent further damage to your pavement.
The Crack Sealing Process
An oil jacketed melter is a machine used in asphalt crack sealing to heat the material to 350-400 degrees Fahrenheit, which is then applied to cracks in asphalt surfaces. The machine is designed with an oil jacket that surrounds the melting chamber, which helps to distribute heat evenly and keep the sealing material at a consistent temperature for effective crack filling.
The crack sealing process involves the following steps:
Cleaning the Surface
The surface is cleaned of all dirt, debris, and vegetation using a high-pressure blower or a wire brush.
Routing (Optional)
If the cracks are larger than 1/2 inch in width, they may need to be routed to create a proper reservoir for the crack sealant. This step involves using a router machine to widen and deepen the cracks.
Heat Lancing (Optional)
Heat lancing is a process of using heat to dry out the crack and prepare it for the sealant. This is done by using a propane torch to heat the surface of the crack and remove any moisture or debris.
Sealing the Cracks
The oil jacketed melter is used to heat and melt the sealing material to the appropriate temperature of 350-400 degrees. The melted material is then applied to the crack using a wand. The material is carefully injected into the crack, filling it from the bottom up.
Overbanding (Optional)
Overbanding is a process of applying a layer of sealing material over the top of the crack sealant to help prevent water intrusion and improve the durability of the repair. This step involves applying a small layer of sealant over the top of the filled crack, extending slightly beyond the edges of the crack.
