New Road Construction

Every road leads to a different destination

Which criteria are important in this regard? Which methods are needed? Which machines are used?

In developing and emerging countries, the primary concern is to build the basic infrastructure. Regardless of whether made of asphalt or concrete, when constructing new roads it’s important to produce a well-integrated pavement structure – from a stable base layer to a level and true-to-profile surface. Which applications are common in new road construction?

Typical new road construction applications include the construction of base layers and frost protection layers, asphalt production, asphalt paving, asphalt compaction, as well as inset and offset concrete paving.

Construction of Base Layers

The base layer of a road forms the foundation for the road surface. It needs to have a high bearing capacity, withstand a wide range of weather conditions, and function for decades to come. What materials are base layers made of? What properties do they need to have?

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Frost Protection Layer

The frost protection layer keeps water from rising into the pavement, and in doing so, prevents frost damage to the surface layer. For this purpose, rock is crushed and sieved into graded aggregates, which are then laid and compacted.

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Asphalt Production

In order to turn aggregates and bitumen into asphalt for road construction, a thermal mixing process is needed – this is what an asphalt mixing plant is used for.

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Asphalt Paving

Asphalt paving requires an exceptionally high degree of meticulous logistical planning and management. Care needs to be taken that sufficient quantities of mix are available on site all the time, and that the mix will not cool down prematurely. What types of machines are used for asphalt paving? What is the sequence of operations?

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Asphalt Compaction

The final step in road construction is compaction, which serves to create a high-quality surface structure. What factors need to be considered during asphalt compaction? What effect can the location of the road or the temperature during asphalt compaction, for example, have on the compaction process?

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Inset Concrete Paving

Concrete is a particularly durable material and eminently suitable for roads which have to withstand high loads. Slipform paving is a standard method that is primarily used to pave large roads and runways using inset technology.

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Offset Concrete Paving

Instead of placing pre-fabricated concrete parts in a manual operation, the required profiles can also be produced by slipform pavers in offset application. What applications can offset concrete paving be used for? What are the advantages of slipform paving when compared to manual construction?

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New Racetrack Construction

Racetracks’ longitudinal slope is regulated in relation to the speed. For example, the starting straight is not permitted to have a slope of more than 2%. To facilitate drainage, the cross slope should be between 1.5% and 3%. The curves are not allowed to be banked at an incline of more than 10%. Above all else, racetracks are designed so that drivers are met with challenging circuits where they can fully exploit their own and their cars’ potential.

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Road Rehabilitation
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