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

  • BOMAG offering new asphalt feeder
    February 17, 2016
    BOMAG is now adding material feeders to its asphalt paving equipment range. The new BMF 2500 feeders can help boost paving efficiency, productivity and quality by allowing a more homogenous flow of asphalt into the paver. These machines reduce the problems of asphalt segregation as well as cold spots forming in the mat. Such issues can occur when the last of the mix from each truck load passes from the paver hopper to the screed. Using a BMF 2500, contractors can also boost output on large highway paving jo
  • BOMAG offering new asphalt feeder
    January 6, 2017
    BOMAG is now adding material feeders to its asphalt paving equipment range. The new BMF 2500 feeders can help boost paving efficiency, productivity and quality by allowing a more homogenous flow of asphalt into the paver. These machines reduce the problems of asphalt segregation as well as cold spots forming in the mat. Such issues can occur when the last of the mix from each truck load passes from the paver hopper to the screed. Using a BMF 2500, contractors can also boost output on large highway paving jo
  • W.S. Tyler launches new Hydro-Clean mobile test plant
    March 11, 2014
    W.S. Tyler has unveiled its all-new, all-inclusive Hydro-Clean mobile test plant. The company says that the unit enables operations to test Hydro-Clean washing technology at their sites before committing to a capital investment. W.S. Tyler, a member of the wholly-owned German-based Haver & Tyler Processing Technology Alliance, says that washing material with the Hydro-Clean results in cleaner products, higher selling values and new income from the sale of material that previously was considered waste. Th
  • Control systems boost soil compaction efficiency
    December 20, 2013
    German firm MOBA is now offering a tool that can help boost the efficiency of soil compaction operations. The company’s MOBA MCA-2000 roller system is designed to help the roller driver achieve optimum compaction in earthworks. This is important as the load-bearing capacity of the subgrade of a construction site can be crucial and material compaction is vital. Uniform compaction can prevent subsequent plastic deformations and ground settling. But whether an area has been compacted to the specification is d