Traffic calming made by VÖGELE.
Three Pavers in Action on a New Bypass Road
Four kilometres of road, three lanes, two passing places and two bridges: contractor Matthäi relied on machine technology from VÖGELE for placing the surface course on the new stretch of the B 442 Federal road near Eimbeckhausen in Lower Saxony, Germany.
“Eimbeckhausen can relax!” said Lower Saxony’s Minister of Transport and Traffic Jörg Bode as he officially opened Eimbeckhausen’s new bypass road to traffic. After two years of construction, the harassed residents of Eimbeckhausen were finally rid of the barrage of traffic that had rushed through their small village near Hanover on the B 442 Federal road for decades. Towards the end, almost 14,000 vehicles had been counted per day, 15 – 19% of which were HGVs. All these vehicles are now diverted along the four kilometre stretch of new trunk road to the south of the village. On some sections, the road even includes an additional third lane to make overtaking easier. Two passing places were also built and two bridge decks paved with asphalt.
Contractor Matthäi opts for VÖGELE
A consortium consisting of Matthäi Bauunternehmen GmbH & Co. KG. Langenhagen and Johann Bunte Bauunternehmung GmbH & Co. KG, Braunschweig branch, was awarded the contract for the roadworks. In order to withstand the high stresses imposed by the enormous volume of traffic in the long term, the layer structure, the joints as well as grade and slope control had to be absolutely perfect on all stretches of the new road. And this is why contractor Matthäi decided to exclusively rely on technology from VÖGELE for the surface course, as it ensures top quality.
Wearing course paved “hot to hot”
The paving teams first placed a 10cm thick base course, followed by a 9cm asphalt binder course of asphaltic concrete. For the surfacing of stone mastic asphalt (SMA), 3cm thick, the men headed by Site Manager Jörg Gattkowski worked with two and, on some sections, even three VÖGELE machines paving “hot to hot”. This method not only speeds up the entire paving process, but also significantly improves the quality of the wearing course, ensuring perfect joints and thus considerably enhancing the road’s durability.
Extending screeds with bolt-on extensions
Most of the asphalt work was undertaken by a SUPER 1900-2 and a SUPER 1800-2. These two versatile, high-performance tracked pavers can be used for a large variety of jobs – motorways, country roads, squares and roundabouts – making them eminently suitable to meet all the challenges of this particular job site. In Eimbeckhausen, both machines came with an AB 500 Extending Screed in TP1 version. Bolt-on extensions were fitted for a maximum pave width of 6.5m. As a result, asphalt for the wearing course could be paved on the 11.5m wide roadway and the 12.5m wide bridge decks without a need for conversion. On some stretches, a third machine came into play: a wheeled SUPER 1303-2 combined with an AB 340 Extending Screed in TV version was used for surfacing the passing places.
Big MultiPlex Ski for grade and slope control
To ensure precise grade and slope control when paving wearing course – another crucial requirement for a top-quality road – the SUPER 1800-2 and SUPER 1900-2 were fitted with a Big MultiPlex Ski. The ski’s sonic sensors scanned the new binder course and transmitted their picked-up values to NIVELTRONIC Plus®, the System for Automated Grade and Slope Control. The admitted tolerance for the specified surface accuracy was 4mm in a longitudinal direction over a length of 4m – a requirement easily met with the sophisticated VÖGELE technology. Summing up, Site Manager Gattkowski could not have been more positive: “Layer thickness, compaction and bond of layers – everything was perfect. We are totally satisfied with the finished pavement.”
Generously dimensioned workplace
The easy operation of the three machines was pivotal in ensuring that the entire project went off so smoothly. All pavers of the “dash 2” generation from VÖGELE come with the proven, intuitive ErgoPlus® operating system. This system not only encompasses the clearly arranged paver operator’s console and the two screed consoles, but also a perfectly designed operator platform. “The paver operator’s workplace is very generously dimensioned,” said Gattkowski. Thanks to this user-oriented design, full concentration is always assured, even when working under high pressure.
* End of Press Release **
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Ludwigshafen/Rhein / June 2012
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Photos:
/ Voegele_06_1_12_Einbeckhausen_185.jpgPaving wearing course “hot to hot” guaranteed perfect longitudinal joints.
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The ergonomically designed and clearly arranged ErgoPlus® paver operator’s consoles made operation of the pavers particularly easy.
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The binder course was scanned by a Vögele Big MultiPlex Ski for grade and slope control.
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“Layer thickness, compaction and bond of layers – everything was perfect. We are totally satisfied with the resultant pavement.” Jörg Gattkowski, Site Manager Contractor Matthäi.
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