One might think that since getting commercial roads made is so expensive, it might easily last decades. However, the reality is far from it. Damage can affect the functionality and service life of your road.
A commercial road riddled with potholes or cracks can result in accidents and damage the cars driving over them. Therefore, these pavements must be instantly fixed. Pavements that are extensively damaged cannot be fixed with simple crack sealing, crack filling, throw-and-go, or patch paving. They require either resurfacing or repaving.
How often should pavements be resurfaced or repaved?
While yes, we can estimate the pavement’s service life through a ceteris paribus approach, some things need to be decided on an ad hoc basis, which makes budgeting for an asphalt surface very tricky.
A new pavement can last 20 to 30 years, and resurfacing can add between 8 to 15 years to a pavement’s surface life. However, there is no definite answer to how often a commercial road should be resurfaced or repaved because there is no one-size-fits-all kind of surface. Therefore, you can only calculate an expected time frame.
Why is it impossible to predict the exact time?
The decision of when a commercial road needs to be repaved or resurfaced should be taken on based on its condition. An inspection should be done to determine the damage done to an asphalt surface. The reason for this is simple – the extent and cause/type of damage needs to be determined.
Predicting surface deterioration is impossible because you cannot be sure about the traffic pattern, pressure/weight, weather conditions, skids, and a few other factors a road will have to bear. All of these take a toll on a commercial road.
Should you repave or resurface?
Repaving or resurfacing are two methods that are only used when all repair methods prove ineffective or temporary. Resurfacing is cheaper and faster than repaving. In resurfacing, only the top layer of a commercial road is removed and reinstalled. But in repaving, all layers from the foundation or sub-base to the top layer are removed, and new pavement is laid.
The type of damage can determine what you need to get done. Eradicating cracks requires resurfacing. However, something like potholes or depressions indicates an issue with the base, so they need repaving.
Resurfacing only nullifies surface-level damage, but repaving corrects foundational damage. The leading cause for foundational issues is poor compaction of the sub-base during installation.
If you resurface a commercial road when what it actually needs is a repaving, your road would quickly develop problems again, which will force you to get repaving done. And since repaving costs more, getting it done for surface level damage is a waste. Therefore, you need to get the damage inspected correctly.