Just like any other constructed structure, pavements and roads may disintegrate with time and loose their worth due to various reasons. This, for example, includes age, bad weather conditions and continued traffic which continues to weaken the loose sections. Areas prone to excessive freezing and thawing experience such problems as cracks and openings are made to allow water to enter and accumulate. The cracks increase in width and depth with time and develop into potholes. One of the problems associated with this involves damage to car parts such as wheels. Some are very deep and can cause life threatening road accidents. Most of the measures put in place are usually temporary but that does not mean there are no permanent solutions. This article looks at the various methods used in pothole repair.
First of all, it is important to understand the materials used in the process of making and repairing pavements. The materials used are asphalt in nature and are made up of binder and aggregate. The mixture can either be a hot mix or cold mix. The mixture is mostly produced by asphalt plants following certain specifications.
The first technique is known as throw and roll. This is a temporary method that is usually applied when the placement of materials becomes hard to control. This is for example during winter when there are unfavorable water and temperature conditions. When the pothole is dry, this technique brings about better and lasting results.
Another alternative to throw and roll is a procedure known as the edge seal repair. The asphalt material used in this case is placed on the edges of the hole until it is full. Once the repaired section is dried up, the next step involves placing sand on top to help prevent tire tracks from passing vehicles. However, the tack material is placed after some time since the area is first to let to dry.
The other method is semi permanent and involves removal of water and all forms of debris from the hole. This is then followed by making cuts on all the sides in order to place the asphalt mixture which can be hot or cold. In this method, a vibratory roller is used to compact the mix material. This method is however labor and equipment intensive.
The other method that requires the use of advanced tools and equipment is the spray injection. The debris and water, in this case, are usually removed by blowing and then the materials are sprayed onto the hole. Asphalt is then used to cover the patched section. For this method, no compaction is done.
Such repairs just like any other field continues to receive advancements in terms of using more advanced equipment, tools and methods. A permanent solution is now achieved through the use of an infrared panel. This method involves heating of the asphalt mixture using the infrared rays to soften it and make it recyclable. With this, a more hot mix is added and made compact.
It is important to have pavements and roads with potholes repaired to avoid further disintegration and deterioration which may be more expensive to repair. Frequent checks and monitoring should be done in order to apply the best methods.
First of all, it is important to understand the materials used in the process of making and repairing pavements. The materials used are asphalt in nature and are made up of binder and aggregate. The mixture can either be a hot mix or cold mix. The mixture is mostly produced by asphalt plants following certain specifications.
The first technique is known as throw and roll. This is a temporary method that is usually applied when the placement of materials becomes hard to control. This is for example during winter when there are unfavorable water and temperature conditions. When the pothole is dry, this technique brings about better and lasting results.
Another alternative to throw and roll is a procedure known as the edge seal repair. The asphalt material used in this case is placed on the edges of the hole until it is full. Once the repaired section is dried up, the next step involves placing sand on top to help prevent tire tracks from passing vehicles. However, the tack material is placed after some time since the area is first to let to dry.
The other method is semi permanent and involves removal of water and all forms of debris from the hole. This is then followed by making cuts on all the sides in order to place the asphalt mixture which can be hot or cold. In this method, a vibratory roller is used to compact the mix material. This method is however labor and equipment intensive.
The other method that requires the use of advanced tools and equipment is the spray injection. The debris and water, in this case, are usually removed by blowing and then the materials are sprayed onto the hole. Asphalt is then used to cover the patched section. For this method, no compaction is done.
Such repairs just like any other field continues to receive advancements in terms of using more advanced equipment, tools and methods. A permanent solution is now achieved through the use of an infrared panel. This method involves heating of the asphalt mixture using the infrared rays to soften it and make it recyclable. With this, a more hot mix is added and made compact.
It is important to have pavements and roads with potholes repaired to avoid further disintegration and deterioration which may be more expensive to repair. Frequent checks and monitoring should be done in order to apply the best methods.
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