Asphalt Paving

Asphalt Paving

We always ensure that the sub-grade is of good quality and compacted to optimum density with a sheep foot packer. It is important to start with a good sub-grade layer and we make sure that your paving project is built on good ground. We make sure that the clay base is dry, well graded, and compacted to design standards. After completion, we make sure to cover the clay subgrade with gravel as soon as possible to prevent moisture saturation into the sub-grade.

While installing the gravel base, we make sure to use approved crushed gravel by recognized gravel suppliers. All granular products are installed in even lifts with a maximum thickness of 150mm/lift. Each lift is then watered and compacted with smooth drum mechanical compactors until optimum density is achieved.

All our asphalt is installed to the highest of standards. This includes providing asphalt that is fresh and hot. We never use left over asphalt from other projects or asphalt that does not meet the highest standards and specifications. We coordinate our projects so that our asphalt trucks sit on site for the minimal amount of time possible. Good coordination allows the asphalt to be placed at the optimum temperature and provide the highest amount of time to compact the product. We use mechanical asphalt screeding machines (pavers) whenever possible to provide as smooth a product as possible and to reduce the number of seams on each project. GCS only uses ride on mechanical smooth drum/pneumatic packers for compacting asphalt. The type and sizes of the compactor(s) is chosen based on the size of the project and the thickness of the asphalt being placed. Each project is unique, and we choose the right equipment for each job.

At the end of each paving job, GCS makes sure to treat the edges. This is done by making sure all the edges are at a 45-degree angle to the granular sub-base.

Depending on the size of the project, there may be seams/joints created between pours or from the budding up of pavers. To prevent future cracks and/or potholes, GCS heats up these joints and compacts them to make sure that they blend in together and end up with a strong bond.

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