+49 40 670 570






Soil Stabilization

Solidification and stabilization of soil

Extreme weather conditions – great wetness/floods and long dry periods – disturb the natural equilibrium moisture and the structure of many water-permeable soils. This leads to undermining, cavities/voids, gaping cracks, crevices and settlements. Foundation soil, slopes and earth walls lose their stability, buildings sag and crack.

Depending on the type of damage, the stability and load-bearing capacity of the substrate must be restored.
This includes:

  • Filling/stabilizing cavities/voids/voids
  • Increasing soil cohesion
  • Dam and slope stabilization
  • Displacement and sealing against in-situ water (under pressure/in flow)
  • Post-construction foundation laying
  • Lining/injection of floor slabs

In practice, soil injections are used, often in conjunction with injected ram injection lances and soil nailing. 

Our injection systems with a wide range of material properties allow a partial elastic deformability of the injected substrate as well as the rebuilding of a solid, stable base.

Soil consolidation is a process that can be used to improve the load-bearing capacity of a soil. Special binding agents are added to the subsoil for this purpose. Their purpose is to make the subsoil permanently resistant to mechanical loads. Soil consolidation is also intended to ensure that the soil is as resistant as possible to water and frost.  

Soil consolidation prevents subsidence from occurring and leading to deformation of structures. Settlement is often caused by barely perceptible vibrations. However, subsidence is also caused by water flushing and the associated soil erosion. This can lead to the formation of cavities or hollows in soft soil layers. Soil stabilization and consolidation is then necessary. Loose soils can be stabilized and consolidated by targeted injections into the subsoil. The special silicate and polyurethane resin-based products used for ground injection are characterized by high strength and fast curing.


  • Silicate resins of different viscosity and strength – adapted to the grading curve of the soil; cavities/voids
  • PU resins with different foaming behavior – adapted to the hydrodynamic conditions
  • Acrylate gels and silicate systems for penetration stabilization
  • Hybrid systems for backfilling and stabilizing cavities/voids and for pile installation
  • Gluing/bonding of mechanical safety systems (piles, anchors, pegs)


Our products for soil solidification

  • Silicate Injection Solutions: Low viscosity silicate injection solutions from WEBAC are especially designed for solidifying and stabilising soil. They are not only suitable for ground stabilization and soil injection but also for the stabilization of masonry. 
  • Consolidation Line: Consolidation Line products from WEBAC are special, fast reacting injection resin systems. They are suitable for sealing and solidifying soil formations and, for example, used for the solidification of unconsolidated soil.