Why Drainage Is Key To A Long-Lasting Pavement

Why Drainage Is Key To A Long-Lasting Pavement

Believe us when we tell you: water is a sworn enemy of asphalt pavement. Be it in the form of puddles or rain; it has the potential of slowly yet impactfully breaking asphalt down. Potholes are only the beginning. Long-lasting asphalt damage can be expected paired with held-up water. 

Water molecules cause the bonds between asphalt binders and the sediments below to tear and break. Binders are the by-products that are made from crude oil. Because water is so dangerous to asphalt in the long run, it is crucial to have a well-maintained drainage systemC&J Construction in ShorewoodIL, brings you this blog post about why drainage is key to a long-lasting pavement. 

How is Water Damage Caused?

Water meanders down the asphalt surface due to poor drainage, saturating the asphalt and weakening it. The supporting materials used in making the asphalt will also weaken due to the water penetration. With pressure from the vehicles driving over, the water is spread out underneath. The pavement begins to form cracks, and the aggregate and subgrade bases slowly disintegrate. 

This water damage is ten-fold dangerous in the winter months. It seeps through the cracks and then freezes inside because of the low temperature. The ice expands the pavement, making the cracks widen and heave the asphalt up.

This is how potholes are formed come spring and summer, when the ice inside melts, popping the asphalt up. Such potholes can cause severe damage to the undercarriage of your car. They account for many roadside accidents in springtime.

How Can We Save the Pavement From Water?

The best solution to keep water from pooling is to create drainage slopes. Pavement with less or no drainage slopes is often the first where water pools. The puddles are where the potholes develop. C&J Construction recommends that all new pavement have at least a 1% slope in their overall structure. As for already existing pavement, regular maintenance is crucial. Special attention must be given to preventing water from pooling around. Prompt patching, seal coating, and crack sealing will significantly diminish the chances of pothole formation and pavement damage. 

The water will be kept in rotation with proper surface maintenance and drainage. Here is how we recommend you do it: installing an aggregate base. The quality should be class 5. This will ensure that the base remains sturdy. What works as an alternative is a drain tile at the bottom. These tiles build a channel that facilitates the draining of water. Think of it as a geo-fabric filter paired with river gravel and a perforated pipe. It catches a basin or the city’s stormwater pipe pathway to spill its water as drainage.

C&J Construction is ShorewoodIL’s well-known asphalt paving and construction company. If you find yourself searching asphalt paving near me, look no further than C&J. Get a free estimate and contact us today to get started.