Construction products detail

Soil mixing techniques

Soil mixing techniques serve to create unreinforced structural elements (single elements or bodies of soil made of single elements) through grouting of the soil with a binder suspension on site. With the help of suitable tools, a defined volume of soil is mixed with a predetermined volume of binder suspension in a wet mixing process to form a homogeneous, self-hardening mixture.

Regulatory framework

There are no conclusive technical rules for the design and execution of the structural elements by means of soil mixing techniques. DIBt grants general construction technique permits (aBG) for corresponding applications. The executing company must submit a declaration of conformity stating that the executed elements comply with the provisions of the relevant construction technique permit.

The temporary use of such structural elements (generally < 2 years) does not require a regulatory verification of fitness for use or application. The structural elements can be designed on the basis of DIN 4093 'Design of strengthened soil – Set up by means of jet grouting, deep mixing or grouting'.

The use of these techniques for ground improvement is permitted from a regulatory point of view and does not require a construction technique permit.

National procedure

A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.

No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).

Please feel free to use the template below.


new decision
valid until
Subject concerned Applicant Decision no. Validity
from / to
BAUER Mixed-In-Place (MIP) BAUER Spezialtiefbau GmbH BAUER-Straße 1 86529 Schrobenhausen Z-34.26-200 Z: 31.05.2021
G: 28.03.2026
Einphasenschlitzwand "BAUER EDWs" BAUER Spezialtiefbau GmbH BAUER-Straße 1 86529 Schrobenhausen Z-34.26-237 Z: 18.05.2022
G: 18.05.2027
"Deep-Soil-Mixing" MENARD GmbH Hittfelder Kirchweg 2 21220 Seevetal Z-34.26-240 Z: 20.12.2021
G: 07.08.2026