Soil stabilisation for road construction

Soil stabili­sation technology

TERRA-3000® is a natural, ecologically clean stabilisation process for all road categories.

30 yearson the marketand continuously developed
from7 yearswarranty on roadswhen the process is followed
from30%savingscompared with conventional methods

Why TERRA-3000®

The existing soil becomes the base course

Roads deteriorate through water, frost and point loads. TERRA-3000® compacts the existing soil into a load-bearing, waterproof layer, faster, cheaper and more durable than conventional construction.

Water ingress
Temperature fluctuations
Point loads
TERRA-3000 canister with TERRA SYSTEM logo
For all road categories

Film English

TERRA-3000® in 2 minutes 40

How the technology works, where it is used and what it saves compared with conventional road construction.

AI notice: This film contains AI-generated footage and an AI-generated voice.

Benefits of the technology

Construction time 2 – 3× shorter

The surface layer can be applied the next day instead of after weeks.

Construction time 2 – 3× shorter

Surface layer the next day instead of after weeks.

Up to 50% less material

Strong stabilisation without large aggregate imports.

Up to 60% lower transport costs

Far less logistics, a smaller CO₂ footprint. Depends on the location of the quarries.

More than double the load capacity

Loads far above the level of ordinary roads.

Water and frost resistant

Weather independent, can be applied in rain and wind.

Environmentally safe

Natural product, no impact on groundwater.

Water impermeability test

After 12 hours in water, the treated soil is still standing

Untreated soil compared with soil treated with TERRA-3000®.

Soil samples after 10 minutes in water
Soil samples after 1 hour in water
Soil samples after 3 hours in water
Soil samples after 12 hours in water
Left: treated with TERRA-3000®Right: untreated

Process

Three steps on site

No excavation. The work is done with standard road construction machinery: grader, tanker, soil stabiliser and rollers of 20 tonnes or more.

Soil sample under the microscope1

Soil analysis

  • Grain size distribution and moisture of the base course
  • Quantity of other fractions (sand, gravel)
  • Layer thickness and required amount of TERRA-3000®
Soil stabiliser mixing in the solution2

Applying TERRA-3000®

  • Prepare the working solution and apply it with a stabiliser or sprayer
  • Mix thoroughly with the soil
  • Compact intensively with rollers of 20 tonnes or more
Roller applying the protective layer3

Protective layer

  • Before the final roller pass, once the profile is shaped
  • Milled asphalt, stone screenings or gravel
  • Then asphalt or a simple reinforcement, depending on use

Direct comparison

Cost and time per base unit

Method 1Unbound crushed stone base
Construction time
4 – 12 working days
Cost (GER)
€ 210k – 420k
Surface layer
after several days to 1 week
Method 2Cement-treated base (CTB)
Construction time
6 – 30 working days
Cost (GER)
€ 360k – 520k
Surface layer
only after 7 – 28 days
TERRA-3000® technologyOn-site soil stabilisation
Construction time
3 days for 6,000 m³
Cost (GER)
€ 120k – 160k
Surface layer
the next day

Base unit: Length 1,000 m, width 10 m, thickness 0.6 m (≈ 6,000 m³). 40 – 70% savings compared with conventional methods.

References

100+Projects
18Countries

In use worldwide

TERRA-3000® is applied under a wide range of soil conditions. EU certified.

AustraliaAustriaCanadaColombiaGuatemalaRomaniaSlovakiaTürkiye
Izmir, Türkiye · August 2026

Construction of a test track

Documentation of the test build in Izmir: from breaking up coarse soil clods and working in TERRA-3000® to on-site measurements.

Original footage from the test build.

FAQ

In Comparison

How does TERRA-3000® differ from polymer stabilisers?

Polymer methods often also use cement or lime to bind the soil. TERRA-3000® is a catalytic ion exchanger that activates the natural binding forces of the existing soil, without cement, lime or polymer.

How does TERRA-3000® differ from traditional construction?

Traditionally, the ground is excavated down to frost depth and rebuilt with imported gravel. TERRA-3000® stabilises the existing soil on site without excavation, and the surface layer can be applied the next day.

Does TERRA-3000® work in desert regions?

Yes. In the laboratory of FH Münster University of Applied Sciences, pure desert sand was bound with TERRA-3000® under a simulated warm climate into a load-bearing layer that reliably meets the subgrade requirement. The existing sand thus becomes a load-bearing substructure.

About us

TERRA-3000® from Berlin

SL Coating Vertrieb GmbH is the exclusive distributor of TERRA-3000®, the soil stabilisation system by TERRA-SYSTEM from Austria.

We support projects from the first soil sample to the test track and work with local construction partners. On request, TERRA-3000® can be produced in your own country, which also saves delivery and customs costs.

Road constructionAll road categories, including access roads to mining areas
Difficult terrainWetlands, permafrost, forests and peatlands, mines and quarries
InfrastructureRailway subgrades, airfields, earth dams, embankments and irrigation canals
SurfacesBuilding plots, storage and landfill areas

Contact

Talk to us about your project. For an initial assessment, the location, length and width of the route are enough.

Technical documents for partners are available in the partner area. Access on request.

SL Coating Vertrieb GmbH Kaiser-Friedrich-Str. 90 · 10585 Berlin +49 177 8871288 mail@sl-coating.com www.sl-coating.com Legal noticePrivacy