Road first, then comes fortune. Road building must be the first step to take when a country or small town seeking for economic development. But have you ever wonder how a road gets built? What kinds of road equipment do you need?
Whether it is to build a highway, airport runway, urban or country road, a reasonable planning and design must be done before the road construction. Once a contractor is ready, the earthwork can finally begin. And a smart choice of road equipment is crucial to establish a solid foundation and long-lasting surface.
Motor grader levels the surface
First, road embankments will be built by using cuts and fills. Next, motor graders are commonly used in the road construction to finish soil and create a flat surface. If equipped with a front dozer blade, it can pave, stack and backfill loose materials. If equipped with a rear scarifier, it can loose hard and dense soil.
Road rollers compact road bed
After the screened dirt being leveled by motor graders, it will be sprayed with water, and road rollers are used to compact the soil and gravel. There are different types of road rollers for you to choose according to various road construction conditions. Single drum roller, tandem roller and pneumatic tyre roller from SANY can meet your expectations on efficient compaction. During this stage, facilities such as drains and sewers must be installed.
Asphalt batching and paving
When grader and road roller complete the road bed as required, it's time to pave. Asphalt, concrete or stabilized soil are commonly used materials in road construction, and the road equipment involved during this stage are asphalt or concrete batching plant and road paver. The batching plants produce heated asphalt or liquid concrete first, then the pavers finish the paving with high accuracy and efficiency.
Open to traffic
At last, rigorous ride quality tests must be done to ensure the new road a smooth surface before it opens to serve the public.
