Accredited testing laboratory for construction materials: concrete, aggregates, asphalt, earthworks and special tests such as Micro-Deval and CDF.
Ingenieurgesellschaft Baustoffe und Umwelt Weimar mbH
Weimar-Legefeld (DE)New on Amplifa
About us
Ingenieurgesellschaft Baustoffe und Umwelt Weimar mbH (IBU Weimar) operates an accredited testing laboratory for construction materials in Weimar-Legefeld. Its range of services includes testing of aggregates, concrete testing (fresh concrete, hardened concrete, structures), asphalt testing, earthworks testing and special tests such as the Micro-Deval test for railway ballast and the CDF freeze-thaw/de-icing salt test on concrete specimens. In addition, the company offers sampling and field tests on construction sites with its own vehicle fleet, third-party surveillance and certification of aggregates according to EN 12620, as well as training courses. The laboratory employs 10 staff members, including engineers, geologists and construction materials testers, and has a 300 m² testing hall, several specialist laboratories and a training room for 25 people. The company is recognised as a RAP-Stra testing body, as a VMPA-accredited concrete testing laboratory (B-2088) and as a Qualified Body and Qualified Testing Body under the Alkali Guidelines (DAfStb, ID no. THU03). Its customers come from road construction, the concrete industry, the aggregates industry, railway construction and earthworks.
- Site
- Weimar-Legefeld
- Processes
- Testing of aggregates, Asphalt testing, Concrete testing, Testing for earthworks, Special tests (including Micro-Deval test for railway ballast), CDF test (resistance to combined freeze-thaw and de-icing salt exposure on concrete specimens), Fresh concrete testing according to DIN EN 12350-1 to 12350-12, Hardened concrete testing according to DIN EN 12390-2 to 12390-13 (including compressive strength)
- Materials
- Aggregates, Concrete, Fresh concrete, Hardened concrete, Asphalt, Binders, Railway ballast, Natural stone
- Certificates
- RAP-Stra 15 accreditation (testing body for construction materials in road, VMPA-accredited concrete testing laboratory (B-2088), Surveillance and certification body THU03 under the State Building Code, Qualified Body and Qualified Testing Body under the Alkali Guidelines, Surveillance and certification body THU03 (DIBt/LBO), Qualified Body/Testing Body under the Alkali Guidelines (DAfStb)
- Founded
- 1946
- Employees
- 10
- Industries
- Road construction, Concrete industry, Aggregates industry, Railway construction (railway ballast), Earthworks
- 01
Sampling in the field / on the construction site
- 02
Laboratory testing
- 03
Analysis
- 04
Assessment / evaluation
- 05
Third-party surveillance and certification
- 06
Training
Test materials & test methods
Aggregates
Testing and third-party surveillance of aggregates according to EN 12620, including assessment of alkali reactivity.
Concrete (fresh and hardened concrete)
Testing according to DIN EN 12350 and DIN EN 12390, including compressive strength on a calibrated compression testing machine.
Concrete structure
In-situ testing on structures according to DIN EN 12504-1 and DIN EN 12504-2.
Asphalt
Asphalt testing as a RAP-Stra-accredited testing body for construction materials in road construction.
Earthworks materials/soils
Testing for earthworks.
Railway ballast
Micro-Deval testing for railway ballast in railway construction.
CDF test
Testing the resistance of concrete specimens to combined freeze-thaw and de-icing salt exposure.
Natural stone and binders
Traditional testing area of the laboratory since its founding in 1946.
Locations
Weimar-Legefeld
DETesting laboratory with testing hall, specialist laboratories and training room
- Materials
- Aggregates, concrete, asphalt, earthworks materials, railway ballast
- CDF test facility (CDF test chest, 2025)
- Compression testing machine calibrated according to DIN EN 12390-4
- 300 m² testing hall
- Own vehicle fleet for sampling and field tests
Service areas
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Testing of aggregatesTesting | – | – | – | – | Aggregates, Natural stone |
| Asphalt testingTesting | – | – | – | – | Asphalt |
| Concrete testingTesting | – | – | – | – | Concrete, Fresh concrete, Hardened concrete |
| Testing for earthworksTesting | – | – | – | – | Earthworks materials, Soils |
| Special tests (including Micro-Deval test for railway ballast)Testing | – | – | – | – | Railway ballast, Aggregates |
| CDF test (resistance to combined freeze-thaw and de-icing salt exposure on concrete specimens)Testing | – | – | – | – | Concrete |
| Fresh concrete testing according to DIN EN 12350-1 to 12350-12Testing | – | – | – | – | Fresh concrete |
| Hardened concrete testing according to DIN EN 12390-2 to 12390-13 (including compressive strength)Testing | – | – | – | – | Hardened concrete |
| In-situ testing on structures according to DIN EN 12504-1 / DIN EN 12504-2Testing | – | – | – | – | Concrete, Structure |
| Field tests and sampling on the construction siteTesting | – | – | – | – | Construction materials |
| Surveillance testing (third-party surveillance) in the aggregates industryTesting | – | – | – | – | Aggregates |
| Third-party surveillance/monitoring as a Qualified Body under the Alkali Guidelines (ID no. THU03)Testing | – | – | – | – | Aggregates according to EN 12620, Concrete |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CDF test chest (CDF test facility) | – | 1 | – | 2025 | Weimar-Legefeld |
| Compression testing machine (calibrated per DIN EN 12390-4) | – | – | – | – | Weimar-Legefeld |
| Testing hall (300 m²) with testing equipment | – | 1 | 300 m² | – | Weimar-Legefeld |
Additional services
Quality & accreditations
The testing body is accredited under RAP-Stra 15, as a VMPA-accredited concrete testing laboratory (B-2088) and as a Qualified Body and Qualified Testing Body under the Alkali Guidelines (DAfStb, DIBt ID no. THU03). The compression testing machine is calibrated according to DIN EN 12390-4.
| Evidence | Weimar-Legefeld |
|---|---|
| RAP-Stra 15 accreditation (testing body for construction materials in road | |
| VMPA-accredited concrete testing laboratory (B-2088) | |
| Surveillance and certification body THU03 (DIBt/LBO) | |
| Qualified Body/Testing Body under the Alkali Guidelines (DAfStb) |
History
- 1946
Founded as the State Construction Materials Testing Office in the premises of the Hochschule für Baukunst und bildende Künste (today Bauhaus-Universität), headed by Rudolf Riedeberger.
- 1951
The research division is separated off (today MFPA Weimar); the testing department becomes a state testing office of the DAMW.
- 1960
Relocation to a villa in Weimar's Helmholtzstraße converted for laboratory purposes with a testing hall; headed by Hubertus Meinert.
- 1970
Affiliated with the Institute for Aggregates and Natural Stone (IfZN) in Großräschen; branch office of the DAMW with state third-party surveillance.
- 1990
Conversion into a RAP-Stra testing body and privatisation.
- 1997
Taken over by Dr. Löffler/Hanover as Institut für Baustoffe und Umwelt Weimar.
- 2002
Relocation to Weimar-Legefeld into a modern laboratory building near the motorway exit.
- 2015
Taken over by Dipl.-Ing. Elmar Dräger as an independent site of the geotechnik group in Heiligenstadt; renamed Ingenieurgesellschaft Baustoffe und Umwelt Weimar.
- 2019
Self-declaration on the DAfStb statement on the alkali-silica reaction dated 24.10.2019.
- 2024
Re-issue of the VMPA certificate B-2088 (valid until 31.10.2026); notice of recognition as a Qualified Body dated 01.10.2024.
- 2025
Commissioning of a new CDF test facility on 21.10.2025; introduction of the Micro-Deval test for railway ballast.