Functional Principle of Soil Stabilization

How state-of-the-art cold recyclers and soil stabilizers work

Soil stabilization outperforms soil replacement thanks to fewer truck trips, shorter construction times, conserved resources, and lower CO2 emissions. The WR soil stabilizer uses its powerful milling and mixing rotor to mix pre-spread binding agents such as lime or cement into existing soil with insufficient bearing capacity, transforming it into a high-grade building material right on the spot. The resulting homogeneous mixture of soil and binding agent offers excellent tensile, compressive, and shear strength, long-term resistance to water and frost, and volume stability. Typical applications include the construction of paths, roads, highways, routes, parks and sports fields, commercial zones, industrial parks, airfields, dams, backfilling, and landfills.

Wide range of applications
Automated features for efficient operation
Precise metering systems for binder addition
Efficient engine and diagnostic systems
Perfect visibility concept and comprehensive camera system
Perfection in ergonomic design and handling
Outstanding all-terrain mobility
High milling and mixing performance
Steering system tailored to field requirements
  • The binding agent lime improves the paving properties and compactability of wet, cohesive soil. This is known as soil improvement.
  • The binding agent cement effectively increases bearing capacity, volume stability, and resistance to water and frost. This is known as soil consolidation.
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 Operating Tutorials for the WR Series
  •  Explanation of the most important machine functions and daily maintenance tasks
  •  Valid for the complete WR series
  •  Language versions: English and Spanish
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In the homogenization process, the WR’s powerful milling and mixing rotor granulates the native soil without the addition of binding agents and loosens it. While a grader profiles the homogeneous soil mixture that is produced, various HAMM rollers take care of the compaction process.

Soil Stabilization with Lime

For soil stabilization, the all-wheel drive Streumaster spreads the binding agent. Behind the binding agent spreader, the powerful milling and mixing rotor of the WR homogeneously mixes the existing soil with the pre-spread binding agent. While a grader profiles the prepared soil mixture, various HAMM rollers compact it.

Soil Stabilization with Cement

To produce a new, cement-treated base layer, a Streumaster towed spreader deposits cement, followed by a water tanker. The WR’s powerful milling and mixing rotor homogeneously mixes the material and the pre-spread cement. At the same time, water is sprayed into the mixing chamber by means of an injection bar. While a John Deere grader profiles the prepared base layer material, various HAMM rollers compact it.

Range of Applications

The WIRTGEN WR series features a wide range of different models to suit every soil stabilization and cold recycling application.

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