Even the most durable paved surfaces, like asphalt pavement, are susceptible to deterioration, distress, and cracking. However, knowing what causes these problems can help you prolong the life of your asphalt. This article from PaveManPro.com can help. It outlines the major causes of pavement deterioration.
Overtime, the materials that make up asphalt begin to break down and become more easily affected by the elements: rain, sunlight, snow, etc. Furthermore, the liquid binder that holds the asphalt together begins to lose its natural resistance to water, allowing liquid to seep into the pavement. Once this happens, the surface can quickly be affected.
Yet, while pavement will naturally breakdown over time, there are a few outside factors – poor construction or human error – that may speed up this process, causing premature deterioration.
The factors leading to asphalt deterioration include:
• Insufficient or improperly compacted base below the asphalt
• Over or under compaction of asphalt
• Improper temperature of asphalt when applied
• Poor drainage
• Water – over time and especially without proper maintenance water penetrates the asphalt, washes out the base underneath it, causing it to crack, break down and collapse.
• Sunlight – Oxidation breaks down and dries out the once flexible liquid asphalt that holds the aggregate together. This causes raveling and shrinking cracks, which allow water to penetrate beneath the surface.
• Chemical/ petroleum exposure – the introduction of chemicals to asphalt, including gas and oil, can soften the asphalt and cause it to break down more rapidly.
When asphalt pavement is constructed and maintained properly it wears out slowly and can last up to 25 years or more. Proper maintenance is key to protecting it from the external factors that wear it out.
If you notice your driveway, parking lot, or any pavement displaying any signs of deterioration, it is probably time to call a professional to patch your asphalt and prevent further damage. Do not put this off and let small cracks become big problems. It is far better to pay for a little patching now than to have to pay for a total re-paving down the road.
If you have any questions, contact PTG Enterprises aka My Pavement Guy by calling 410-636-8777 or click here
