Road Construction: Steps to Building High-Quality Roads

Roads are exceptionally useful especially in today’s highly mobile society, where people travel to other places and explore new cities and towns. These well-built paths connect various areas and enable people to reach their destinations easily.

Properly constructed and maintained roads can last for decades, making them worthy investments for governments and private companies. However, to ensure the quality of the road, these steps should be followed carefully:

finished road construction project

Phase 1: Earthwork

Before any work is started, the area on which the road is going to be constructed should be cleared of all vegetation and obstruction. Trees, shrubs, bushes, rocks, and stones should be dug out by excavation vehicles to ensure that the surface is ready for construction.

After the removal of obstructions, the surface will be mounted with soil and leveled to ensure appropriate water drainage once the construction is complete. This step helps prevent the road from flooding, making it last longer.

Phase 2: Subbase and Base Course

The most important step in road construction is the preparation of its subbase. This 350-mm layer serves as the foundation of the road and is often the primary load-bearing part. That is why it is essential that the material used for this layer is of high quality.

To ensure the proper installation of the subbase, contractors should give special attention to the base thickness, base stability, and compaction. If this layer is not correctly compacted, the asphalt that will be poured on top may not last long.

After grading the subbase, a 250 mm layer of base course is laid on top. This should be applied evenly on the surface and graded again.

road surface texture

Phase 3: Surface Course

Once the supporting structures of the road are completed, a 330-mm layer of Portland Cement Concrete Pavement (PCCP) is added to the surface. A layer of asphalt is poured after this step.

Asphalt is a combination of a petroleum product, aggregate base material, paving grade bitumen. Applying a 50-mm layer of this material on top protects the underneath layers of the road and provides motorists with a clean and smooth ride. It also gives the road a shiny and attractive finished surface.

Phase 4: Road Marking

The construction of a road does not end once the layer of asphalt is applied. Contractors still have to make sure that the road is safe for vehicles and pedestrians. They accomplish this by conveying relevant information through road markings.

To achieve the best quality of thermoplastic paint application, contractors clean the road surface thoroughly by getting rid of any debris and ensuring that it is moisture-free. They then apply a high adhesion primer on the surface in a thin, even coating. After letting the primer dry, the road marking is applied using thermoplastic paint.

Using the primer before the road paint will help the latter bond to the surface of the road. This subsequently extends the lifetime of the thermoplastic road paint.

Rua Seguridad is the expert to work with when it comes to road marking projects. We have more than 15 years of experience, making us one of the most trusted names in the industry. For more information on how we can address your needs, get in touch with us.

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