Asphalt is a popular and durable material for driveways, parking lots, roads, and more. However, over time, even the best asphalt can begin to crack and show signs of wear. If your asphalt pavement is showing cracks, it's essential to identify the underlying causes so you can address them and prevent further damage. Let’s explore some of the most common causes of asphalt cracks and how you can prevent them from recurring.
1. Moisture Damage
Although asphalt is generally waterproof, it is not completely impervious to water. Moisture can wash away the gravel and sand base beneath the surface, causing the top layer to shift and break apart. This leads to cracks and other forms of damage. Water can also seep into existing crevices or cracks, exerting pressure from above, which further damages the surface. Proper drainage is essential to divert water away from your asphalt, but if your drainage system is inadequate, sealcoating your pavement can help keep moisture out and prevent further deterioration.
2. Sun Exposure
The heat from the sun can cause significant damage to asphalt, especially during the summer months. The high temperatures can dry out the asphalt, causing the materials in the aggregate to break down, which leads to cracks. Rapid temperature fluctuations, especially during the spring, can also create problems. For example, melting snow from a warm day may refreeze the next, putting pressure on the asphalt from below. The best way to protect your asphalt from extreme temperatures is to apply a high-quality sealcoat. Sealcoating helps shield the surface from UV rays and prevents damage caused by temperature changes.
3. Ground Movement
Ground movement is another major contributor to cracks in asphalt. The ground beneath your pavement can shift due to factors like seasonal frost and thaw cycles, earthquakes, or severe weather. When the ground moves, the gravel base underneath your asphalt may shift, creating pressure that leads to cracks or even potholes. While you can’t control the movement of the earth, you can keep your pavement in good condition with regular maintenance. Well-maintained asphalt is better equipped to withstand the stresses caused by ground movement.
For all your asphalt maintenance needs, Asphalt Sealcoating Supply Inc. offers a wide range of supplies, including crack fillers, sealcoating materials, and equipment. Whether you're filling cracks or protecting your asphalt from future damage, we’ve got the products you need to keep your pavement in top shape. Call us today at 304-916-6117 to learn more!