Building material tester

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Building material inspector has been a state-recognized training occupation since 1940. The currently valid "Ordinance on vocational training for building material inspectors" in accordance with the Vocational Training Act (BBiG) dates from 2005.

Duration of training and structure

The training to become a building material tester normally takes three years. A shortening of the apprenticeship period by six months is possible with the appropriate qualification. There are three disciplines in the job profile of the building material inspector, which are structured as follows:

Intermediate and final exams are carried out by the relevant chambers of commerce and industry .

Work area

Building material testers work in laboratories, on construction sites and in the context of construction preparation or assessment of soils also in the field.

Building material inspectors control and test the quality of building materials ( cement , mortar , concrete , asphalt, etc.), raw and auxiliary materials, intermediate products (e.g. water, gypsum , fly ash , blast furnace slag) and the suitability of soils for use as building material and building ground in building or civil engineering.

In the field of asphalt technology, for example, they check the content and quality of bituminous binders , aggregate mixtures and the suitability of asphalts, such as the voids content and the degree of compaction, using Marshall test specimens in road construction. In addition, fatigue and deformation-oriented tests are carried out, e.g. B. Triaxial, track formation , cold, fatigue, bending and static and dynamic stamp penetration tests. Rock and various binder tests are also carried out.

In the area of ​​mortar and concrete technology, tests are carried out on hydraulic (mainly cement), latent hydraulic and non-hydraulic binders, aggregates (formerly "aggregate"), compressive and flexural strength tests on test specimens, and tensile strengths on reinforcing steel and prestressing steel .

In the geotechnical field, geotechnical investigations are carried out in a wide variety of ways, in close cooperation with geologists . These include, for example, exploratory bores with soil addresses (= designation), plate pressure tests to check the load-bearing capacity, axial shear tests , grain size distributions , consistency determinations and test compaction .

The tests are carried out by the building material inspector within the framework of the applicable regulations ( DIN EN ISO standards, TP, TL) in the laboratory or, if necessary, on site. The building materials tested are assessed by the building material tester based on the measurement results. In connection with research projects, e.g. B. at universities, also deviating, more experimentally oriented studies are carried out.

Building material testers are employed in concrete and asphalt mixing plants , earthworks laboratories, engineering offices, road construction authorities, as well as in material testing institutes and universities / technical colleges or their institutes (e.g. for building materials science , in student training and in research), where they are managed as technical employees.

professional school

In Germany there are vocational schools in six locations where building material testers are taught:

  • Beckum
  • Berlin
  • Braunschweig
  • Bremen
  • Same
  • Hamburg

See also

Web links

Construction materials tester in Berufenet the Federal Employment Agency

Individual evidence

  1. Genealogy building material tester , accessed on August 21, 2014
  2. Ordinance on vocational training to become a building material tester (BauStoffPrAusbV 2005) of March 24, 2005 , accessed on August 16, 2014
  3. Beckum Vocational College , accessed on October 28, 2018
  4. Knobelsdorff-Schule (Berlin) , accessed on October 28, 2018
  5. ^ Johannes Selenka School (Braunschweig) , accessed on October 28, 2018.
  6. ^ School center of the upper secondary level on Alwin-Lonke-Strasse (Bremen) , accessed on October 28, 2018
  7. ^ State vocational school Selb , accessed on October 28, 2018
  8. ^ Vocational School Construction Technology (BS 08) (Hamburg) , accessed on October 28, 2018