BY Wirtgen Group
On the almost 70-meter-tall and 785-meter-long Aftetal Bridge west of Bad Wünnenberg, Franz Trippe GmbH crews from Schmallenberg in the Sauerland region, faced specific weather conditions and stringent quality requirements. Management chose Vögele machines and digital solutions: WITOS Paving Docu, including RoadScan and Jobsite Temp for the job.
The project, due to be completed in Spring 2022 for client Landesbetrieb Straßenbau Nordrhein-Westfalen (Straßen.NRW), is building a bypass around Bad Wünnenberg, in Westphalia, to relieve traffic congestion. The new B480 is part of a large-scale traffic corridor to make the Hochsauerland region more accessible. The most demanding section of this large-scale project, the Aftetal Bridge, presents constant wind, which rapidly cools paving mix.
Franz Trippe GmbH approached the project with digital support. “We have been giving a high priority to digital processes for years,” Managing Director Stefan Trippe said. “For example, we work with our own cloud solutions and rely on 3D technology in a lot of our machines to make us even more efficient and accurate and to meet increasing demands on quality and costs.”
To keep an eye on temperatures when paving the B480, and to record job site processes accurately, the company chose the relevant solutions from Vögele: WITOS Paving Docu, including the RoadScan non-contact temperature measuring system and the new Jobsite Temp app. WITOS Paving Docu allows paving and machine data to be recorded via smartphone and analysed at the end of the day. In combination with RoadScan, contractors can also record and analyse paving temperatures.
During paving, current temperature data can be viewed via the display of the paver operator’s console. The new Jobsite Temp app furthermore enables the foreman and other users to access temperature data and supplementary data via smartphone in real time: among other things, it shows current pave speeds, screed width, the positioning of the paver and the position of the mix transfer point including delivery note information.
“By combining WITOS Paving Docu with RoadScan, we created the conditions on the one hand for checking paving temperature continuously under the difficult weather conditions and on the other, for meeting the quality and documentation requirements,” Trippe said.
The contractor paved a 3.5-centimeter-thick surface course up to 12 meters wide on two sections, measuring some 2 kilometers each, ahead of and on the Aftetal Bridge. The crew used a Vögele SUPER 1800-3i paver with AB 500 TP1 extending screed to place two lanes. In the high compaction variant with tamper and pressure bar, the screed offered precompaction, which reduced the number of roller passes required. The contractor used the MT 3000-3i Offset PowerFeeder to prevent paver interruptions.
“The machines enabled us to facilitate smooth processes, stop the mix cooling down and create conditions for a high standard of paving quality,” Trippe said. “In combination with WITOS Paving Docu and Jobsite Temp, we were also able to view all the relevant data on a smartphone at all times, determine the ideal compaction window, take counter-measures if necessary and record all the processes associated with paving accurately, quickly and paper-free.”