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

  • Oscillation presents an efficient alternative compaction method
    September 27, 2017
    Hamm pioneered the concept of compaction using oscillation rather than vibration and now offers a wide range of machines with this feature, both for soil and asphalt applications. The firm has developed a strong following for its oscillating compactor range, with many contractors now appreciating the benefit of this technology.
  • High quality asphalt compaction from new generation machines
    June 20, 2017
    The latest developments in asphalt compaction equipment will help boost productivity and finish quality. The new generation compactors can utilise the latest generation machine control tools to deliver quality within the short timeframe determined by the asphalt temperature. Ammann has broadened its asphalt compaction range with the addition of the new ARP 95 K pivot-steer roller and the articulated ARX 90 and ARX 26 models. These units are available with Ammann’s proprietary ACE compaction systems to optim
  • Cutting to the chase – with milling tools
    May 16, 2016
    Powerscreen is celebrating 50 years in business this year, and it will launch celebrations at the Hillhead (28-30 June, Buxton, England). Colin Clements, global product line director said: “Powerscreen have been providing the crushing and screening industry with high quality, innovative products for 50 years and we are excited to celebrate that success with those who matter - our distributors and customers. By kicking off the celebrations at Hillhead, we will be able to showcase new and revamped equipmen
  • Advanced road recycling systems
    March 15, 2012
    Advanced road recycling capabilities are offered by Wirtgen. Having started as a contractor, Wirtgen’s roots in this side of the business are strong and the company’s development of road recycling systems has become a core competence, originating as an offshoot of its contract work. Wirtgen’s leading position in the milling machine market continues and although an increasing number of rival firms offer machines, the company’s share of this segment remains dominant. With demand for machines having grown in 2