Paving Thin Layers Hot

How does paving thin layers hot over a sprayed seal work?

If only the top layer of a road is damaged, you don’t have to replace the entire road surface. A particularly cost-effective and environmentally friendly alternative is the process of “paving thin overlay hot onto a sprayed seal.”

Perfectly Bonded Layers Withstand Traffic Loads

Rehabilitation measures that can be carried out both quickly and cost-effectively are gaining in importance worldwide. One such particularly economical alternative to complete rehabilitation is the “paving thin layers hot” process.

In a preliminary operation, cold milling machines fitted with fine milling drums create an even, slightly roughened road surface.

The very low spraying pressure makes it possible to create an exact spray pattern and to work cleanly along curbs.

Perfection when paving resource-saving and low-noise thin layers hot.

Thanks to VÖGELE’s modular machine design, the SUPER 1800-3i SprayJet paver with spray assembly for bitumen emulsion can be used as a traditional road paver with minimal conversion work.

HAMM DV rollers compacting a 3-cm-thick surface course by oscillation.


Paving Thin Layers Hot the Perfect Solution for Roads in Need of Rehabilitation

This surface texture has the ideal properties to ensure an excellent bond with the thin layer of asphalt to be applied. The sub-base must be thoroughly cleaned before further processing. A paver with a built-in spray module is the preferred choice for paving thin layers hot. It automatically applies a tack coat of polymer-modified bitumen emulsion to seal the base. At the same time, it paves a thin asphalt surface layer just 1.2 to 2.0 cm thick.

"The VÖGELE 1800-3i SprayJet/SUPER 1800-3 SprayJet is suitable for paving thin layers hot on top of sealant as well as for conventional paving with pre-sprays."

VÖGELE spray paver

Paver with Spray Assembly for Bitumen Emulsion Perfect for Paving Thin Layers Hot

This surface texture has the ideal properties to ensure an excellent bond with the thin layer of asphalt to be applied. The sub-base must be thoroughly cleaned before further processing. A paver with a built-in spray module is the preferred choice for paving thin layers hot. It automatically applies a tack coat of polymer-modified bitumen emulsion to seal the base. At the same time, it paves a thin asphalt surface layer just 1.2 to 2.0 cm thick.

The SUPER 1800-3i SprayJet is suitable for paving thin layers hot on top of sealant as well as for conventional paving with pre-sprays.

Compaction of Thin Surface Layers with Oscillation Preferred

Compaction is a major challenge when paving thin layers hot, as it requires the layers to be compacted uniformly but without causing surface unevenness. Dynamic compaction with oscillation is ideal to prevent damage to the underlying cold layer during compaction. Static compaction is another alternative, but should be carried out without vibration.

Benefits
Economical use of materials cuts costs
Conserves resources, environmentally friendly
Excellent grip
WIRTGEN Levelling technology

WIRTGEN levelling technology controls height, depth and slope to achieve results of maximum precision.

Levelling technology Levelling systems
A 50% Reduction in Material Consumption

Interview with Friedhelm Pahlke Head of Sales, Germany at VÖGELE

To the Interview

Job Reports on Projects Involving Paving Thin Layers Hot

On the A3 near Duisburg, the paving team rehabilitated an area of 60,000 m² in just 55 hours using four WIRTGEN cold milling machines and six VÖGELE pavers.

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A 50% Reduction in Material Consumption: What needs to be kept in mind when it comes to this method? One thing is certain – paving thin layers hot only works if the base is sealed.

Interview with Friedhelm Pahlke

VÖGELE SprayJet technology is used to place standard hot mix asphalt overlays as well as ultrathin bonded overlays.

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The 2 km long runway at Tromsø Airport (Norway) was rehabilitated at night because the airport had to remain in operation during the short Arctic summer.

Night work by daylight
Road rehabilitation
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