Asphalt, as a composite material produced by mixing materials such as bitumen, sand, sand, etc., is known as one of the most important pillars of the road construction industry all over the world. Asphalt plays an essential role in various industries such as transportation, and it can have different types depending on the ingredients and how they are combined with each other. In addition to road construction, asphalt has other uses such as insulation of tanks, reservoirs, sanitary facilities, building construction, dam construction, etc. Asphalts may be damaged by factors such as land subsidence, water infiltration and freezing, stresses caused by environmental conditions such as oxidation, heavy traffic, etc. and need to be repaired and repaired. In the following article, the method of repairing asphalt and its methods will be discussed.
Classification of asphalt repair methods
Although asphalts can have different types, in general, it can be said that asphalt is divided into three main categories, including hot asphalt, cold asphalt, and protective asphalt, and each of them has different characteristics, capabilities, and applications. Asphalts can be damaged due to several factors and parameters, that's why the way to repair them can be different and have special conditions. In general, it can be said that the repair of asphalt types is done in three different ways, which include preventive maintenance, corrective maintenance, and emergency maintenance.
Engine maintenance
This method of asphalt repair is actually the first and most important operation before the asphalt is damaged, and in it, the surface damage of the asphalt is repaired. In principle, preventive maintenance prevents damage and possible damage to asphalt, and in this way, asphalt pavement can be protected and damage caused to the asphalt surface can be prevented.
Corrective maintenance
The second method of asphalt repair is corrective maintenance and it is used when preventive maintenance has not been used and the asphalt surface has been damaged for various reasons. In this method, different measures must be taken, the most important of which include staining the damaged parts, and finally it can be used to repair and repair the asphalt.
Emergency maintenance
The third method of asphalt repair is emergency maintenance, and it is used when the damage and damages caused to the asphalt surface are very serious and can cause disturbances in traffic, transportation, etc. and cause damage to vehicles. In fact, when there are many potholes on the asphalt surface in such a way as to prevent the normal movement of vehicles, it is necessary to use the emergency maintenance method for its repair and restoration and return the asphalt surface to its original state.
Effective factors in choosing the asphalt repair method
Each of the mentioned asphalt restoration methods can have unique conditions and require different tools and materials. To choose the best asphalt repair method, it is necessary to consider various points and parameters, the most important of which include such things as the type of pavement, the type and extent of damage, the cause or causes of damage, the type of road and traffic level, climatic and environmental factors, and the economic nature of the repair. , repair life, season and time frame, availability of equipment and personnel, availability of quality materials, safety of workers and others, etc.
Asphalt repair steps
As mentioned, asphalt repair can be done in different ways, but the most important and main method to eliminate potholes and serious damage is the emergency maintenance method. In order to perform this restoration method, it is necessary to perform various steps which are as follows.
First step: determining the cause of asphalt failure
The first step of asphalt repair is to determine the main reason for its deterioration and damage. As mentioned, asphalt can be damaged by factors such as stresses and landslides, pressure and impact, freezing and water penetration, etc. The most obvious problem of asphalts is the creation of potholes, and these potholes can have several characteristics such as being bowl-shaped, having a diameter of at least one meter, having vertical edges, having a depth of 10 to 15 cm, etc.
Second step: preparation of restorative materials
In the second stage of asphalt repair, it is necessary to prepare the necessary materials to repair the damaged areas. Basically, fresh asphalt is used to repair potholes and various damages, which consists of bitumen and aggregate. For asphalt repair, it is better to use cold asphalt. The value and importance of cold asphalt in road construction is due to the fact that it is prepared at ambient temperature and will be applied at the same temperature, and it is sufficient for drying at ambient temperature.
The third step: arranging the dimensions of the hole
In the third stage of asphalt repair, it is necessary to arrange the edges of the hole so that the new asphalt can adhere well to the edges of the old asphalt. When there is a hole or damage on the surface of the asphalt, it is necessary to cut the damaged part using specialized tools so that the cuts made cover a part of the healthy asphalt. After cutting the asphalt, its edges must be completely cleaned and any stones, sand, etc. must be removed. If the edges of the pothole are still damaged, the new asphalt may also be damaged, so the pothole must be cleaned well.
When there is dry soil, sand, etc. inside the hole, the new asphalt will not be able to stick to it, and it will be removed from its place after drying. Also, if there is water in the pothole, it must be allowed to dry completely, otherwise the new asphalt will not stick to its place.
Step 4: Filling the asphalt hole with stone
In places where the depth of the holes created in the asphalt is more than 5 cm, the inside of the hole should be filled using rubble. This will cause a smaller amount of asphalt to be used and reduce repair costs. The price of gilsonite, bitumen and materials can be influenced by various factors, but it is possible to use various methods to reduce the costs of asphalt and repair it, the most important of which is proper infrastructure.
Fifth step: Covering the hole with restorative materials
After picking the rubble inside the hole, its surface should be covered with restorative materials. The amount of asphalt should be at least one centimeter so that it can cover the surface of the rubble well and it can be compressed using a roller and its edges can be aligned with the old asphalt surface.
Sixth step: Asphalt compaction
Finally, and in the last step, it is necessary to perform the asphalt compression operation so that the repaired area is completely level with the asphalt surface. For this purpose, you can use all kinds of hand rollers, single drum, vibrating double drum, etc.
ATDM Co is a trusted manufacturer and exporter of high-quality Bitumen 60/70 and Bitumen 80/100. We offer a range of packaging options, including drums, bags, and bulk quantities, to meet the specific needs of our customers.
Our product line includes three distinct quality grades: premium, second, and third. Each grade is produced with meticulous attention to detail, utilizing advanced facilities and processes. Our Bitumen 60/70 is manufactured to meet international standards, ensuring optimal performance and durability in various applications.
We pride ourselves on our ability to accommodate a wide range of volume requirements, from smaller quantities for individual projects to larger bulk orders. Our diverse range of options is designed to meet the unique needs of our valued customers, both domestically and internationally.
Currently, we have supplies in three countries: the United Arab Emirates (Dubai), Panama, and Singapore. We are committed to delivering exceptional products that meet the diverse needs of our customers, and we take pride in our reputation for reliability and customer satisfaction.
At ATDM Co, we are dedicated to providing high-quality bitumen products that meet the needs of our customers in a variety of industries and applications. Contact us today to learn more about our product offerings and how we can help meet your specific needs.