Voegele 04 1 11 SUPER 1800 2SJ en by 2m18Zj


									Economical pavement rehabilitation on Munich’s Orleansstrasse, Germany.

Clean Paving of Wearing Course with Low-Noise
Stone Mastic Asphalt

In Munich’s Haidhausen district, a VÖGELE paver has provided the main arterial
road with a new wearing course of low-noise stone mastic asphalt. Once again,
SprayJet technology has acquitted itself with honours in terms of both
cleanliness and cost-efficiency.

Freshly renovated old apartment buildings, small cafés, antique dealers and boutiques
– little wonder that Munich’s Haidhausen district is a popular place to live. Especially in
the “French quarter” between Elsässer Strasse and Lothringer Strasse, the cityscape of
the mid-19th century, when Germany experienced an economic boom, has been
largely preserved. Yet this tranquillity comes at a price: the majority of the traffic is
routed to the edge of the quarter via Orleansstrasse. Here, convoys of cars share the
road with busses, cyclists and tramlines. All told, roughly 14,000 vehicles use the two
sides of the dual carriageway every day. That not only exerts a heavy load on the road,
but also generates a lot of noise.

And so, the Bavarian State capital decided to pave a new wearing course on
Orleansstrasse between Rosenheimer Strasse and Orleansplatz using low-noise stone
mastic asphalt. The roadworks were one of several rehabilitation projects to reduce
traffic noise in the city and were funded within the framework of Economic
Improvement Package II.

Impeccable paving in full-road width
For optimum noise abatement, it is important that the number of joints in the asphalt
pavement is kept as small as possible. Often, however, this solution cannot be

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translated into reality, as the ongoing flow of traffic has to be taken into account when
rehabilitating a road, meaning that the paving job has to be done in several narrow
strips. Contractor Franz Schelle GmbH & Co. KG from Pfaffenhofen was able to avoid
this. The company took advantage of the existing closure of a traffic lane on
“Orleansstrasse” that had been set up for an expansion of the district heating network.
The closure allowed paving in just three strips along the full length of the 550m stretch.
This, however, resulted in cramped conditions on this job site, separated from the
flowing traffic just by beacons. Klaus Fihn, Site Manager of contractor Schelle, gave a
very appropriate description of the situation: “The traffic there is absolute chaos.” His
team had to concentrate even harder than usual.

AB 500-2 TV Extending Screed working in full spray width
The preparations were quickly completed. First, the team removed the old wearing and
binder courses to an average depth of 13.5cm using WIRTGEN milling machines. Then
a new binder course was laid. For paving the new wearing course of low-noise stone
mastic asphalt (SMA 8 S LA), a VÖGELE SUPER 1800-2 with SprayJet Module moved
onto the job site. The paver was combined with an AB 500-2 Extending Screed in TV
version and operated in a maximum spray width of 6m. For the 6m application, the
screed had been built up with bolt-on extensions. In this configuration, the spray paver
placed a perfect wearing course, 2.5cm thick.

Ideal for low-noise wearing course
VÖGELE SprayJet Technology is ideal for placing low-noise wearing course. “In order
to create the noise-absorbing cavities, you cannot compact the mix to the same degree
as conventional asphalt,” explained Fihn. “Therefore, a durable wearing course with an
optimum bond of layers can best be placed using a spray paver.” For the SUPER
1800-2 with SprayJet Module spreads bitumen emulsion and paves asphalt in a single
pass. “The conventional method of spraying emulsion and paving asphalt in two
operations risks impairing the pavement quality,” explained Fihn. “The layer would have

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had to be thicker, which, however, given the lower compaction, would have reduced
the pavement’s durability.”

Job site and surrounding area stay clean
This is not the only reason for Fihn’s confidence that: “Spray pavers like the SUPER
1800-2 with SprayJet Module from VÖGELE represent the future for inner-city road
projects.” Another great merit of the technique is its cleanliness. Thanks to the spray
nozzles working with high precision, emulsion is only applied where it is actually
needed and nowhere else. The spray pulses are controlled automatically and allow
perfect metering. The low spray pressure of just 3 bar minimizes the formation of spray
mist. And because the emulsion is immediately overlaid with asphalt, it cannot be
damaged by transport vehicles, feeders or pavers. This guarantees a perfect bond of
layers. And neither the job site nor surrounding roads are soiled.

Maximum cost-efficiency for contract-letting authority and contractor
Using the SprayJet technology for pavement rehabilitation is highly economical, too. As
the wearing course is thinner than for conventional roadworks, up to 50% of the
material costs can be saved. Fast progression of the roadworks and a shorter time
required until the road can be re-opened to traffic also save time and money, while
ensuring the high pavement quality and long service life of the road. The versatility of
the technology pays off, too: the SprayJet Module can be installed on the SUPER
1800-2 or removed in just a short time. If a contractor has not booked jobs requiring the
SprayJet Module, the machine can be used for conventional paving at any time. In
other words: VÖGELE SprayJet Technology combines noise abatement, cost-
efficiency and maximum paving quality.

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                             ** End of Press Release **

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                       Text and photos available in digital form:

                         Ludwigshafen, Germany / April 2011

Press contact and product information:         Please send sample copy to:
JOSEPH VÖGELE AG                               PREWE
Roland Schug, Anja Sehr                        Michael Endulat
Joseph-Vögele-Str. 1                           Torfbruchstr. 1
67075 Ludwigshafen                             40625 Düsseldorf
Germany                                        Germany

Telephone: +49 (0) 621 - 81 05 - 3 92          Telephone: +49 (0) 211 - 641 - 22 11
Fax:       +49 (0) 621 - 81 05 - 4 69          Fax:       +49 (0) 211 - 641 - 22 97
E-Mail:    presse@voegele.info                 E-Mail:   michael.endulat@prewe.com
Internet:  www.voegele.info                    Internet: www.prewe.com


                                 Voegele_04_1_11_SUPER 1800-2SJ_Fig.1.jpg

                                 Economical and clean: placing wearing
                                 course of low-noise stone mastic
                                 asphalt with the VÖGELE spray paver.

                               Page 4 of 5
 Voegele_04_1_11_SUPER 1800-2SJ_Fig.2.jpg

 „Spray pavers like the SUPER 1800-2
 with SprayJet Module from VÖGELE
 represent the future for inner-city road

 Klaus Fihn, Site Manager
 at Franz Schelle GmbH & Co. KG

 Voegele_04_1_11_SUPER 1800-2SJ_Fig.3.jpg

 On the job site in Munich, the SUPER
 1800-2 with SprayJet Module operated
 in a spray width of 6m.

Page 5 of 5

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