Saving resources begins in the planning phase
The CO2 footprint of construction pits and foundations is up to 95 percent dependent on the materials used. We help you select the best processes for the effective and efficient use of materials as early as the planning phase. As a full-service provider in specialist civil engineering, we select the method with the best CO2 balance from all those suitable for your building project.
Specialist civil engineering processes that are particularly environmentally friendly:
Pile foundations: Reducing emissions
Our slim Greenpile displacement piles, such as Frankipfahl NG® or Atlaspfahl, require substantially less concrete than alternative pile systems. The displacement method also means that no drill cuttings are created. Additional transport and third-party recycling are therefore no longer necessary. As a result, you lower emissions, save costs, reduce traffic and minimise the impact on people living near the construction site. This also increases the likelihood of your project being approved.
Subsoil improvement: The use of natural materials
Vibro replacement is a particularly sustainable process that does not require the use of cement. The use of natural materials like gravel and crushed stone, which are already present on site, makes this subsoil improvement particularly environmentally friendly.
Cut-off walls: Working with the in-situ soil
Recycled building elements are cost-effective for you. The in-situ soil is used in the soil mixing method, which saves soil transportation. Using a frame-led mixing paddle, we mix the soil with comparatively little cement slurry to create a grouted soil body. Load-bearing elements are set into the fresh grouted soil body to realise lining walls with low deformations.
Cut-offs: Environmentally neutral sealing
Cut-offs are used for the surface sealing of construction pit bases against vertically rising groundwater. The soft gel injection floor slab is a particularly environmentally friendly process that we produce economically, safely in terms of execution and with an excellent CO2 footprint. Our environmentally neutral biological soft gel is one of three soft gels with general type approval from the German Institute for Building Technology (DIBt).
Energy piles: Climate-friendly geothermal energy
If you need a pile foundation anyway, then the additional costs for near-surface geothermal energy are low. We are happy to advise you on the planning of energy piles. They can be used to heat the building in the winter and cool it in the summer.
Soil decontamination: Binding contaminants:
To prevent contaminants from contaminated soils from entering the groundwater, we can secure them using the jet-grouting method with secant jet-grouted columns. The contaminants are bound with jet-grouted sealing blocks, providing sustainable protection for the groundwater. Later, the stabilised soil can be transported, sent to soil processing plants or properly disposed of.
Large hole boring: Replacing contaminated soil
We replace contaminated soil with uncontaminated soil by drilling large, cased, secant boreholes. The drill heads for the replacement boreholes have a diameter of up to 2m. The excavated material is then sent to soil treatment plants.
Support with certification
We calculate the CO2 footprint of the methods we have selected for you using special software such as the EFFC Carbon Calculator from the European Federation of Foundation Engineering Companies (EFFC). In this way, we support you in applying for your sustainability certificates, such as DGNB.