What is liquid soil anyway?

Liquid soil is a flowable building material that consists of treated soil, water and binding agents. It is being used more and more frequently, particularly in civil engineering and pipeline construction — as an alternative to conventional backfilling with sand or gravel. After installation, the liquid soil solidifies in a controlled manner without the need for mechanical compaction.

But is liquid soil the better solution in any case? In the following, we highlight the most important advantages and disadvantages.

Benefits of liquid soil

1. No compaction required

Liquid soil is self-compacting. This means that no heavy compaction device is required. This saves time, personnel and costs — particularly on tight construction sites in inner cities or ditches.

2. Immobilization of pollutants

The binder (liquid soil compound) can bind pollutants in the original soil, which allows it to be reinstalled on site.

3. Recycling of excavated material

Instead of removing soil and procuring new filler, the existing material can be processed and reused directly. This saves transportation, reduces emissions and lowers disposal costs.

4. Lower settings

Thanks to the homogeneous and seamless filling, there are significantly fewer refills compared to traditional filling. This is particularly relevant for sensitive surfaces such as sidewalks or roads.

5. Environmental friendliness

Liquid soil reduces the need for primary raw materials, transport routes and CO₂ emissions. By using recycled materials and local processing, the ecological footprint is significantly smaller.

6. Removable when needed

Depending on the recipe, liquid soil can be removed again later — for example for repairs or rework on pipes. This offers a high level of flexibility that conventional materials do not offer.

7. Space-saving

Thanks to its flowable properties, liquid soil can fill even the tightest work spaces - without mechanical compaction.

Conclusion

When is liquid soil really worthwhile?

The benefits of liquid soil are particularly effective when:

• tight spaces exist (e.g. inner-city)
• Pollutants in soil are
• Time and logistics play a major role
• The excavated material can be reused
• sensitive surfaces (such as asphalt or paving) should be protected
• The installation should be quick, safe and sustainable

Practical example of the use of liquid soil

Liquid soil is a future-oriented solution — at least for most projects

Liquid soil offers many advantages for modern construction sites: faster installation, sustainable reuse of material and less impact on people and machines. At the same time, it requires well-thought-out planning, the right equipment and technical expertise.

Anyone who meets these requirements benefits from an economical and ecologically sensible solution — especially for complex or time-critical projects.

Would you like to know whether liquid soil is right for your construction project?

Contact us — our team from RMS Remake Soil GmbH will advise you individually and develop a tailor-made solution on request.