WORLD NEWS
Narrow pathway precision
Precision paving for coloured
asphalt
Coloured asphalt requires meticulous
and highly precise paving. The paver’s
material hopper, material handling
systems and screed must be thoroughly
cleaned and does not allow residual
black bitumen to get into the paver from
the lorry that delivers the mix.
The paving crew’s footwear and shovels
likewise have to be absolutely clean or
there is a risk of black spots appearing
on the sand-coloured asphalt.
In addition, to achieve the highest
level of quality, the paving process must
be continuous and totally faultless.
“With coloured asphalt, the crew has
only one chance to get it right; the
whole process has to run smoothly,”
says Weiss. If the job site is challenging,
too, with narrow paths and trees, then
you need real professionals and world-
class pavers on the job.
Feeding mix under difficult
conditions
With little space to manoeuvre and
narrow access roads, the material
feed process became a real challenge
in Baden-Baden. The lorries were not
always able to dump their load because
of the trees lining the road. It was
extremely helpful that the compact
SUPER 1303-3i has a large, 10t material
hopper, which supplied enough mix at
all times to support continuous paving of
the surface course.
The Grüne Einfahrt or ‘Green
Gateway’ in Baden-Baden, Germany,
is a prestigious route into the town for
pedestrians and cyclists. Established
as a green corridor for the State
Horticultural Show in 1981, the
3.1m-wide path is lined with trees. The
new, natural-looking, 3cm-thick surface
course of sand-coloured asphalt was
precision-paved with a crown of +2.5%.
Paving coloured asphalt on the ‘Green
Gateway’ was particularly challenging,
says Oliver Weiss, site manager and
member of the board of directors at
Weiss GmbH Tief- und Straßenbau, a
civil engineering and road construction
company. This is because coloured asphalt
requires high-precision paving with no
room for mistakes and as work space was
extremely constricted on long sections of
this tree-lined avenue. In other words, this
was a perfect job for the VÖGELE SUPER
1303-3i wheeled paver, which boasts
extremely compact dimensions combined
with high performance.
With a basic width of 1.85m, the
SUPER 1303-3i has a total length of just
4.95m, is extremely agile allowing easy
and fast manoeuvring, even on confined
job sites. With the Pivot Steer steering
brake activated, the outside turning
radius reduces to a minimum of 3.8m,
which is a major advantage since six side
paths and several bends also had to be
paved within three job-site sections along
the narrow route. Thanks to the AutoSet
Basic repositioning function, this task
presented no problems whatsoever.
The ‘Green Gateway’ foot and cycle path in Baden-Baden was paved with a crown.
The slope was 2.5% on each side and two HAMM tandem rollers were used for final
compaction: an HD 10 and an HD 14.
8
JUNE 2019
The VÖGELE paver’s professional
material management system also
contributed to assuring quality. The
oscillating push-rollers ensured shock-
free docking. The large conveyor tunnel,
proportional control of conveyors
and the powerful augers ensured
an optimum flow of mix and even
spreading in front of the screed.
Manoeuvrable, powerful and
user-friendly
Weiss and his paving crew
were thrilled with the machine’s
responsiveness. The SUPER 1303-3i
owes its outstanding steering and
manoeuvrability to the proven ErgoPlus
3 operating system, which is installed
in all Premium Line machines from
VÖGELE.
Numerous convenient and automatic
functions facilitate operation from both
the ergonomically designed operator’s
platform and the screed operator’s
consoles.
The crew was further impressed with
the powerful drive. With a 74.4kW diesel
engine, the SUPER 1303-3i could easily
push the lorry in front of it plus the
machine runs very quietly, and not just
in ECO mode.
Paving a crown with the
perfect screed
The AB 340 Extending Screed is
the perfect screed for pavers in the
Compact Class. With a basic width of
1.8m and a maximum pave width of 5m,
the screed is ideal for paving combined
foot and cycle paths. On this job, the
SUPER 1303-3i used a screed with
tamper and vibrators.
To improve water run-off along the
‘Green Gateway’, the route was paved
with a crown of +2.5%. The crown was
set hydraulically at the push of a button
on the screed operator’s consoles. By
pressing the plus and minus buttons on
a console, the operator could check the
settings for the right and left sides of the
screed on the display at any time.
VÖGELE’s Premium Line SUPER
1303-3i is the machine of choice for
jobs requiring high precision on narrow
sections. The paving crew of the long-
standing company Weiss GmbH has a
great deal of experience with coloured
asphalt and was more than pleased with
the machine’s performance and laydown
rate in Baden-Baden.
www.plantonline.co.za