Grout, corrosion protection systems
Grout is used for filling ducts for internal bonded tendons or sheaths for external tendons. It serves to establish a form and interference fit between the concrete and the prestressing wires and to provide corrosion protection.
Due to the high stresses, prestressing steels are especially susceptible to corrosion. Temporary or permanent corrosion protection measures serve to mitigate this risk.
Regulatory framework
DIBt grants national technical approvals (abZ) for grout and corrosion protection systems where the products significantly deviate from the applicable Technical Building Rules (cf., in particular, MVV TB, Part C 2).
DIBt grants general construction technique permits for construction techniques comprising grout and corrosion protection systems where they deviate from the applicable Technical Building Rules (cf., in particular, MVV TB, Part A 1).
The manufacture of cementitious grout and the grouting itself require special expertise and are subject to surveillance by a recognised inspection body (cf. Model Ordinance on the surveillance of activities involving construction products and construction techniques (MÜTVO)). You can find qualified bodies in the Directory of recognised testing laboratories, inspection and certification bodies (PÜZ-Verzeichnis) in the column on the right.
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.
- pdf-Datei Application for a national technical approval and/or construction technique permit (4 pages ) Version: 10 April 2024; Application form
- pdf-Datei Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages ) Last updated: 10 April 2024; Application form
- pdf-Datei Guideline: How to provide drawings for national technical approvals and general construction technique permits (5 pages ) Version: July 2017
European Technical Assessment (ETA)
To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.
- pdf-Datei Form for requesting a European Technical Assessment (ETA) (2 pages ) Last updated: 10 April 2024
| Subject concerned | Applicant | Decision no. |
Validity
from / to |
|---|---|---|---|
| Vorübergehender Korrosionsschutz mit ROSTSCHUTZ 310 für DYWIDAG-Einzelspannglieder (Stabverfahren) mit nachträglichem Verbund | DYWIDAG-Systems International GmbH Neuhofweg 5 85716 Unterschleissheim | Z-13.6-10 |
Z:
22.11.2021 G: 03.12.2026 |
| Vorübergehender Korrosionsschutz mit ROSTSCHUTZ 310 für Stabspannglieder mit nachträglichem Verbund | Stahlwerk Annahütte Max Aicher GmbH & Co. KG 83404 Ainring - Hammerau | Z-13.6-137 |
Z:
06.05.2022 G: 11.05.2027 |
| Einpressmörtel nach dem Aufbereitungsverfahren - SUSPA mit SWIBO Typ 1973 | DYWIDAG-Systems International GmbH Neuhofweg 5 85716 Unterschleißheim | Z-13.6-7 |
Z:
17.08.2022 G: 03.08.2027 |
| Einpressmörtel nach dem Aufbereitungs- und Einpressverfahren "BBV" | BBV Systems GmbH Industriestraße 98 67240 Bobenheim-Roxheim | Z-13.6-92 |
Z:
26.02.2024 G: 03.02.2029 |
| Subject concerned | Applicant | Decision no. | Issued on |
|---|---|---|---|
| NONTRIBOS® VZ-Inject | August Gähringer GmbH & Co. KG Fabrik technischer Öle & Fette Königgrätzer Straße 14- 34 47053 Duisburg DEUTSCHLAND | ETA-13/0846 |
18.12.2018 |