Concrete paving inset

Building concrete pavements with modern road construction machines

The following sequence of operations is typical of inset paving: First of all, trucks unload the concrete in front of the paver.

The concrete paver then spreads the concrete over the full paving width with its auger or spreading plough and forms the concrete profile for the roadway with the slipform mould. HF vibrators inside the slipform vibrate at high frequency, expelling air from the concrete and hence compacting it.

Electrical vibrators emitting high-frequency vibrations ensure uniform compaction.

When working with smaller slipform pavers a spreader auger spreads the concrete ahead of the front metering screed, behind which the concrete profile is formed.

With larger slipform pavers, the spreading plough distributes the concrete across the entire working width.


On dowel bars, tie bars and joints

The slipform paver keeps moving all the time during the paving operation, its working speed ranging from 1 to 2 m per minute. At the same time, the paver can also insert dowel bars or tie bars in the fresh concrete. These bars reinforce the concrete. Slots are subsequently cut into the concrete pavement above the reinforcements. These slots ensure that the cracks which are invariably produced as a result of stresses and temperature fluctuations are diverted into the concrete pavement in a controlled manner.

Automatically inserted dowel bars transfer loads from one concrete slab to another.

A burlap drag finish produces the required grip

The roadway is levelled by finishing beams and super-smoothers. An entrained piece of sackcloth often ensures a non-skid surface texture. A curing unit is normally used to apply a dispersion to the fresh concrete so that the concrete cures uniformly.

A burlap drag finish gives the surface a fine-grained texture.

Applying a liquid curing compound prevents premature and uneven drying of the concrete pavement.

Made from high-quality material, the super smoother creates a perfectly smooth surface.

Benefits
Long lasting roads
Resistant to surface deformation
Automated production of concrete surfaces

Job Reports

Continuously reinforced concrete pavement is particularly attractive due to its low maintenance costs. It is cost-effective, extremely durable and requires very little maintenance.

Wirtgen concrete paving train – WPS 62i

During the construction of a concrete motorway between the major Indian cities of Vadodara and Mumbai, the WIRTGEN SP 1600 set four world records.

World records with the SP 1600 in India

The power of the WIRTGEN GROUP as the engine driving the construction of the İstanbul Yeni Havalimanı airport – the largest infrastructure project in the history of Turkey.

Airport construction Istanbul

For the expansion of the A9 highway, a construction company relied on the high bearing capacity of concrete slabs and the perfect evenness and grip of the road surface.

Precision in concrete paving

In-place cold recycling of bituminous materials was carried out during a project in Illinois. For this purpose, the contractor selected the 2200 CR recycler with a working width of 3.80 m.

Cold recycling at Highway 15

The taxiways, runways, apron, and the south runway at the airport cover a total of 1.5 million square meters. Paving was carried out by Wirtgen slipform pavers.

Concrete paving at BBI Airport
Are you interested in asphalt paving?

When paving asphalt, the road paver always sets the pace. After all, its performance determines, for instance, how many asphalt mixing plants are commissioned, how many trucks are needed to transport the mix to the construction site and how many rollers are needed for final compaction.

Click here for more information on asphalt paving with road pavers from VÖGELE.

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