Ministry of Transport: QSBW 4.0 test was a success
Baden-Württemberg’s Ministry of Transport has hailed the rehabilitation of the L1150 in Baltmannsweiler as a successful “milestone in the digitalization of road construction”. The process known as “Quality in Road Construction in Baden-Württemberg 4.0” (QSBW 4.0) was developed by the Ministry of Transport of Baden-Württemberg in collaboration with companies in the construction sector and summarized in a manual. The process has been trialled in a competitive environment since 2018.
The objective of QSBW 4.0 is an uninterrupted and digitally controlled construction process designed to ensure excellent paving quality over the entire pavement, increasing the service life of asphalt layers.
RoadScan monitors the temperature, a key quality factor
Temperature measurements are the focus of the quality control measures specified in QSBW 4.0. Because asphalt can only be paved and compacted in specific temperature ranges, the mix temperature must be monitored during loading, transfer to the paver and paving across the entire surface behind the screed.
With WITOS Paving Plus, that is easy to do: the Materials module can record the mix temperature at the time of transfer at the mixing plant. The temperature at the time of transfer to the paver can be measured at the job site. And the temperature data immediately after paving are supplied by the infrared camera which forms part of VÖGELE’s RoadScan temperature-measurement system. It precisely scans the entire specified area across a width of 10 m. Because RoadScan, just like WITOS Paving Plus, is integrated in the ErgoPlus 3 paver operating system, the paver operator has access to temperature data right on his console. Construction managers can also check the data online from their offices via the WITOS Paving Control module.
The IT solution that makes everything simpler and more efficient.
From planning, recording job site data, and precise document-based accounting to identifying improvement potentials – digital process management makes construction projects transparent. And that is of major importance to clients who want to ensure quality and keep an eye on costs. This is where QSBW 4.0 comes into play.
The same applies to WITOS Paving Analysis, the fifth module of the VÖGELE process management solution. This analysis, statistics and documentation tool monitors the entire process chain. The clearly structured diagrams and charts enable the construction manager or planning engineer to draw important conclusions from a completed construction project, for instance relating to the paving efficiency.
Analysis of the job site in Baltmannsweiler clearly demonstrated the benefits of digital process control. Thanks to perfect cycle calculation and optimization of the paving job, paving efficiency when laying down the surface course totalled 99%.
In short, WITOS Paving Plus helped avoid downtime – also passing its field test with this QSBW 4.0 project.