POROUS ASPHALT PAVING IN VANCOUVER WASHINGTON

WHAT IS POROUS ASPHALT?

Porous asphalt pavement is a specialized asphalt mixture comprised of both fine and coarse aggregates bound together by a bituminous binder. The surface appearance of porous asphalt is similar to traditional asphalt, but it has a rougher texture. Porous asphalt is a permeable asphalt surface placed over a granular working platform on top of a large stone reservoir. The asphalt surface is made porous by building with open-graded friction coarse aggregate. The layer under the porous asphalt has the storage capacity to hold the collected water. Porous Asphalt is a pervious pavement designed to allow stormwater infiltration through the surface into the soil below. The water is naturally absorbed and filtered, and the pollutants are removed. In contrast, regular asphalt pavement is an impervious surface that sheds and repels rainfall and surface pollutants. The water is forced to run off paved surfaces directly into nearby storm drains and then into streams and lakes.

USES FOR POROUS ASPHALT

Porous asphalt has many uses, including parking lots, driveways, sidewalks, bike paths, and recreational areas like playgrounds, basketball courts, and tennis courts.

THE DURABILITY OF POROUS ASPHALT

With the appropriate design and installation, porous asphalt pavement can have a lifespan of more than 20 years. Maintenance of the asphalt surface requires regular quarterly vacuuming to prevent clogging by sediment and debris. The pavement surface can be jet-washed or flushed to help maintain surface porosity.

HOW DOES POROUS ASPHALT COMPARE TO REGULAR ASPHALT?

The performance of porous asphalt pavement is similar to that of most other asphalt pavements. Like other asphalt pavement, it can be designed for many situations. The cost of a porous pavement installation is higher than the price of conventional asphalt due to its thicker nature.

BENEFITS OF POROUS ASPHALT USE

Porous asphalt has many benefits for land development plans because it makes better use of the land and conserves water. Because of porous asphalt pavement’s environmentally open structure, porous asphalt provides a method to replenish water tables and waterways rather than forcing rainfall into storm sewers. Porous asphalt also reduces demands on storm sewer systems and provides storm-water management systems that promote infiltration and improve the water quality. The most significant benefit of porous asphalt use is that it reduces the number of pollutants carried to a storm drain or waterway. Land development has always had the detrimental effect of vastly increasing the amount of impervious surface area as the land is bulldozed and paved to create roads and parking lots. Designers developed porous paving systems so runoff would pass through the pavement into a stone base and into the soil to replenish groundwater supplies. With proper installation and maintenance, permeable paving allows for infiltration of up to 80% of annual runoff volume.

INSTALLATION OF POROUS ASPHALT

Porous asphalt pavement does not require proprietary ingredients and does not require special paving equipment. Trademark Asphalt Paving contractors have the necessary equipment to install porous asphalt.

Whether you are a homeowner, builder or facility manager needing driveway paving or parking lot paving in Vancouver WA, Trademark Paving will exceed your expectations by delivering top notch paving services, on budget and on time. Our professional crew will provide expert asphalt installation services and leave your property looking beautiful. Click here for a free quote or contact us by phone for any urgent needs.