The Importance of
Asphalt Crack Sealing

The Importance of Asphalt Crack Sealing

Asphalt crack sealing is a highly effective way to extend the lifespan of your road, pavement, car park or walkway. Asphalt, also known as bitumen, is the primary ingredient in asphalt concrete. A semi-solid, refined form of petroleum, it’s mixed with aggregate to create the asphalt surfaces used on roads, car parks and many other commercial construction applications.

As these surfaces experience general wear and tear, along with exposure to harsh environmental elements, they will, inevitably, start to develop cracks. A small crack can quickly lead to a large crack and a large crack can lead to a pothole or even worse. It’s best to address these structural issues in their early stages to avoid damage that may be beyond repair. Sealing your asphalt cracks quickly and properly will save you time, money and resources in the future.
Importance of Asphalt Crack Sealing

What Causes Asphalt To Crack?

One of the main causes of cracking is moisture. Even a small amount of water seeping into the asphalt can cause it to start to break down. Moisture exposure results in an erosion of the base material, reducing the structural integrity of the asphalt and leading to the first visible cracks in the surface.

Alternatively, the Sun is also a major contributor to cracking. Constant exposure to high temperatures will cause the material to dry up too much, turning it brittle and causing it to lose its inherent flexibility. This makes the asphalt more susceptible to damage from heavy impacts like car tyres or even pedestrians.

Age is also a significant factor involved. All asphalt has a lifespan and, while you can take measures in order to mitigate damage, it won’t be able to hold up against constant use forever. Newer asphalt will always perform better under the same circumstances than old asphalt.

How Does Crack Sealing Work?

Asphalt crack sealing is a process that must be undertaken carefully and thoroughly. Firstly, the cracks are inspected to make sure sealing is a suitable option in this particular circumstance. Next, the crack is cleaned via pressured air/vacuums to provide a uniform and clean reservoir for the sealant. Finally, the rubber-based sealing mix is heated up in a specialised machine, and pumped into the cracks, creating a secure seal. This process ensures there is a watertight covering with full adhesion to the asphalt and cures very quickly.

How Do I Know If The Asphalt Needs Replacing?

Crack sealing is a cost effective and efficient way to repair your cracked asphalt but it’s not suitable in every instance. There are times when the material or structure may be too badly damaged and require a brand new asphalt altogether. Qualified construction professionals will be able to determine what the best course of action is and what’s appropriate for your circumstances.

Crack Repair With RawWorx

If you want to learn more about all of our different repair services, visit our website today. Raw Worx are the experts in all things structural, civil, marine and rail. Contact us online to find out how we can help with your repairs. From bridges to cracked asphalt, we’ll use our years of experience and cutting-edge equipment to make sure you get the results you want.