Even when high-quality asphalt is used to pave a surface, it will not last forever. With the passage of time, roadways, parking lots, and driveways need to be re-surfaced with more asphalt. Unfortunately, this practice can be wasteful and harmful to the environment. This is one of the many reasons why recycled asphalt pavement (sometimes referred to as reclaimed asphalt pavement, or simply, RAP) has become so popular throughout the country. In fact, according to the National Asphalt Pavement Association (NAPA), asphalt pavement is now America’s most recycled and reused material.
This definitive guide will tell you everything that you need to know about recycled asphalt pavement.
Recycled Asphalt Pavement: A Breakdown
Many people are unsure of what RAP actually consists of. This reclaimed material is composed of processed materials that contained asphalt and other aggregates. Usually, the materials are derived from the removal of asphalt during road-resurfacing (millings) or construction projects. They are then crushed and screened to a proper size. When these steps have been completed, RAP will be comingled with high-quality aggregates to produce Hot Mix Asphalt (HMA).
The use of RAP has become so prevalent because of a growing population, as well as out of environmental concerns. Renewable resources cut down the costs associated with paving new roads and surfaces, without depleting non-renewable resources.
Uses for Recycled Asphalt Pavement
Hot Mix Asphalt that is produced using a percentage of reclaimed asphalt pavement is often used in construction or maintenance applications. HMA can be used to pave residential driveways, commercial drives, commercial parking lots, school or playground blacktops. HMA is the most frequently used material for the paving of roads and highways. Experts anticipate that RAP will continue to expand in its use in the coming years. According to NAPA, 56 million tons of RAP was used in HMA pavements in 2009, with 62.1 million tons having been used in 2010.
Benefits of Recycled Asphalt Pavement
The most significant benefit of choosing to use reclaimed asphalt pavement is that it is beneficial to the environment. As an example, assuming 5% liquid asphalt in RAP, the amount of RAP used in asphalt pavements in 2009 and 2010 represents an asphalt binder conservation of over 3 million tons. This makes a huge difference on the amount of non-renewable resources being consumed, a reduction in pollution and reduction in the amount of waste entering landfills.
Of course, another major advantage of reclaimed asphalt pavement is that it cuts down on expenses. As the material is less expensive to produce it is cheaper for asphalt contractors to utilize instead of all virgin aggregates.
Where to Buy Recycled Asphalt Pavement
It’s very important to make a well-educated decision when choosing where you purchase reclaimed asphalt pavement. In order for a paving material to be deemed safe and effective for use in roadways and other surfaces, it must adhere to certain sizing and screening standards. This means you will need to find a manufacturer who takes pride in their work and will work to ensure that the recycled asphalt pavement produced at their plant is of the highest quality and is always consistent with regulations.
It will always be in your best interest to go with a supplier that has its own asphalt plant, where RAP and HMA is produced on-site. This will guarantee high quality and the most competitive rates on the market. Recycled asphalt pavement benefits everyone. With its eco-friendly nature and its ability to cut down contractor and consumer costs, RAP is definitely a smart choice for paving materials.
Braen Stone produces both RAP and HMA on site at their own facility. Speaking with a Braen Stone expert will allow you to determine how much you need and if it meets the standards your project requires.