What are the Different Types of Asphalt Pavement

The most versatile material that can be used for parking lots, driveways, and of course roads, is Asphalt. The great thing about asphalt is that the finished surface is smooth, can last long, quite, and even quite safe to drive over. The structure of the asphalt pavement is built to handle a variety of loads whether it is a passenger car or heavy vehicles. Some mixtures of asphalt can even be designed to absorb the street noise giving it this quite quality and some are quite porous that it can absorb rain water and reduce splash making it very safe during rainy days. Today, we are going to take a look at a few types of asphalt pavement that are used today.

1.) Perpetual pavement – This type of asphalt pavement is quite smooth and also has some safety features. The design structure of this type of pavement makes use of multiple layers. The main idea of this type of asphalt pavement is for it to last longer compared to other types of asphalt pavement or mixtures and with proper maintenance, it is sure to last a long time.

The bottom layer of perpetual pavement is strong enough to handle the load of traffic but flexible enough so as not to bend and break. As mentioned, it makes use of several layers of asphalt in order to create a smooth surface. The great thing about this Asphalt pavement is that during maintenance, there is no need to remove the structure of the road allowing more time and money to be saved making it quite convenient for motorists.

2.) Quite pavement – Noise pollution has become quite a problem today. Whether at work or at home, you are exposed to some form of noise pollution and can be quite a nuisance by bothering you in sleep, cause you to lose focus at work, or prevent you from relaxing. One of the forms of noise pollution today is road noise. Thanks to quite pavement, road noise can be countered.

The use of open-grade friction course in the mixture of asphalt along with stone-matrix asphalt results in an asphalt mixture that when paved on the roads, can help reduce by the noise on highways by as much as five decibels. If you don’t know what that is like, just imagine standing across a source of noise and you double the distance from that source.

3.) Porous Asphalt – One of the many dangers when driving are slippery roads which can be brought about by rain. There have been a number of accidents which were caused by a slippery road that stopped cars from properly braking, but with the development of a porous Asphalt pavement, that would be a thing of the past. With this type of asphalt pavement, the water just simply trains through the asphalt surface and not remain on the road.

As the water drains through the porous surface of the asphalt, they go down in the bedrock and will slowly go into the soil of the surrounding area providing some water for the plant life.