Why Asphalt Cracks Form and What Happens If You Ignore Them
Quick Answer
- Asphalt cracks form due to water intrusion, temperature changes, traffic stress, and oxidation.
- Even small cracks allow water into the pavement structure, accelerating failure.
- Ignoring cracks often leads to potholes, base damage, and costly repairs.
- Early crack sealing and surface restoration can prevent the need for full repaving.
Cracks in asphalt are more than cosmetic defects. They are warning signs that the pavement is losing its ability to protect itself from water, traffic, and weather. Understanding why cracks form and what happens when they are ignored can help property owners make smarter maintenance decisions and avoid unnecessary replacement costs.
Table Of Contents
Why Asphalt Cracks Form
Asphalt is flexible, but it is not immune to stress. Over time, a combination of environmental exposure and daily use causes the surface to dry out and weaken.
The most common causes of cracking include:
Once asphalt loses flexibility, cracks begin to open and spread.
Water is the biggest enemy of asphalt. When moisture enters cracks, it weakens the base layers underneath the surface, accelerating structural failure.
Common Types of Asphalt Cracks
Not all cracks mean the same thing. Identifying the type of cracking helps determine the right repair approach.
- Longitudinal cracks running parallel to traffic flow
- Transverse cracks caused by temperature shrinkage
- Block cracking from asphalt aging and oxidation
- Alligator cracking indicating base failure
Surface level cracks can often be sealed or restored. Structural cracking requires deeper evaluation.
What Happens If Cracks Are Ignored
Ignoring cracks does not save money. It almost always increases repair costs.
As water enters through cracks, it undermines the pavement base. Over time this leads to:
Small cracks turn into major failures when left untreated.
What could have been addressed with crack sealing or surface restoration often turns into full depth repairs or repaving.
How Crack Sealing Stops Pavement Failure
Crack sealing is one of the most effective ways to slow pavement deterioration. Properly applied crack sealant prevents water from entering the asphalt structure and reduces further crack expansion.
Truline uses professional grade crack sealing materials designed to remain flexible as the pavement expands and contracts.
Crack Sealing vs Pavement Restore™ vs Repaving
Crack sealing addresses individual cracks, but when cracking becomes widespread, surface restoration may be the better option.
Pavement Restore™ goes beyond crack sealing by rejuvenating the entire asphalt surface, filling micro cracking, and restoring flexibility. It is often used to delay repaving for many years at a fraction of the cost.
Repaving should only be considered when the asphalt base has failed and surface treatments are no longer effective.
Concerned About Cracks in Your Pavement?
Early action can save thousands in repair costs.
Request a Pavement Assessment
