Skip to main content

Wirtgen machines help stabilise industrial area in Germany

Equipment from the Wirtgen Group has played an important role in stabilising the area being developed for a new industrial zone in Germany. The site of a new factory located in Backnang, including access roads and parking areas has seen the use of the Wirtgen machines to help address poor ground conditions. The contractor employed a Wirtgen WR 200i soil stabiliser, two Hamm compactors and a Streumaster SW 16 MC binding agent spreader to improve the ground properties the soil. The firm, Riva, expanded
May 13, 2015 Read time: 3 mins
An array of machines from Wirtgen and Streumaster were used to stabilise the new site
Equipment from the Wirtgen Group has played an important role in stabilising the area being developed for a new industrial zone in Germany.

The site of a new factory located in Backnang, including access roads and parking areas has seen the use of the 2395 Wirtgen machines to help address poor ground conditions. The contractor employed a Wirtgen WR 200i soil stabiliser, two 228 Hamm compactors and a Streumaster SW 16 MC binding agent spreader to improve the ground properties the soil.

The firm, Riva, expanded its facilities in 2012 with the building of a 9,000m2 production area. But growth of the business required the construction of a second production facility covering 15,000m2 as well as a new administration building.

Contractor Karl Fischer opted for soil stabilisation on the site however as the load-bearing capacity of the soil was insufficient. The firm realised that improving the soil would be more cost-effective than removing the soil on the 50,000m2 site and replacing it with more suitable materials.

In consultation with the client, the firm opted to use the simplest and most economic solution, soil stabilisation. The contractor explained that processing the existing soil allowed it to save costs as well as the time needed for replacement. And this method was also able to deliver a high-quality base with an adequate load-bearing capacity.

The Streumaster binding agent spreader, Wirtgen soil stabilisers and Hamm rollers were then given the challenge of moving 100,000m3 of soil.

The Streumaster SW 16 MC binding agent spreader carried out the initial work. Mounted on a three-axle truck, the module unit has a binding agent container capacity of 16m³. Its high performance and simple loading system allowed high productivity and a total of 6,000tonnes of binding agent were spread on the Backnang site.
The spreading and distribution of the binding agent, quicklime, were controlled electronically, coordinating the operation of the conveyor chain, transverse augers, metering feeders and control terminal. This allowed high spreading accuracy to be achieved. The novel self-cleaning effect of the rotary vane feeder meant that precision and performance were optimised throughout the project, while the integrated automatic dust-collecting filter system allowed dust-free loading of the spreader.

To mix the binding agent into the soil, Fischer used a Wirtgen WS 250 tractor-towed stabiliser. Fischer also used a Wirtgen recycler and WR 200i soil stabiliser.

The WR 200i mixed the soil homogeneously with the spread binding agent down to a depth of 500mm. The soil-binding agent mixture was able to provide high tensile, compressive and shear strength as well as lasting water and frost resistance and volume stability. With its 324kw diesel, the WR 200i achieved up to 8,000m2 on this site, while operating at a width of 2m and a depth of up to 500mm.

Lastly, two compactors from Hamm were used to complete the area. These were an H 20i in padfoot configuration to precompact and another standard H 20i to finish the work.

For more information on companies in this article

Related Content

  • Hamm offers wider oscillation compaction range
    April 9, 2018
    Hamm is now offering a wider range of compaction machines featuring oscillation systems than ever before. These are available in a wide array of asphalt (and soil) compaction size classes, with 30 models offered to suit an array of different site requirements. The firm developed its first compactor with oscillation instead of vibration 35 years ago and machines with this feature now account for 25% of production. Oscillation type compaction is particularly well suited to use on bridge decks as the forces
  • Rebuilding a scenic route in South Africa
    April 20, 2018
    Equipment from Wirtgen has played a key role in the rehabilitation of a major route in Cape Town. The scenic Camps Bay Drive provides access to Camps Bay and Hout Bay Based on the project brief and geometric analysis, Camps Bay Drive required widening to cope with high volumes of tourist traffic and MyCiti buses. In order to minimise the impact on traffic, the design brief targeted construction outside the summer peak tourist season and also required investigation into shortened construction periods. The
  • Innovation abounds at the smaller end of the compaction equipment sector
    August 22, 2013
    New machines are now being offered at the compact end of the asphalt compaction market - Mike Woof reports Manufacturers have developed an array of new machines and solutions for the compact end of the asphalt compactor market segment. These units have been designed to meet the latest regulations for Europe and the US, with low emission engines that are also more economical on fuel. But as these machines are made in large volumes, the market for smaller asphalt compactors sees fierce rivalry between fi
  • Mallorca airport runway upgrade with machine control
    April 13, 2017
    The latest machine control technology has played an important role in an airport runway upgrade for Mallorca. The Spanish island has long been a major tourist destination and its airport has been struggling to cope with demand, handling around 26 million passengers in 2016. Palma de Mallorca Airport is the third largest airport in Spain and during the peak summer holiday period, the massive influx of tourists makes it one of the busiest airports in Europe.