Experientia

, Volume 47, Issue 6, pp 514–516

Microbial corrosion of concrete

  • M. Diercks
  • W. Sand
  • E. Bock
Multi-author Review Microorganisms in nuclear waste disposal Part II

DOI: 10.1007/BF01949869

Cite this article as:
Diercks, M., Sand, W. & Bock, E. Experientia (1991) 47: 514. doi:10.1007/BF01949869

Summary

Sulphuric-acid-producing thiobacilli cause severe corrosion of concrete walls in sewage pipelines. The bacteria excrete sulphuric acid, which degrades carbonaceous binding material. Nitrifying organisms have been found in high cell numbers on historical sandstone buildings as well as on concrete buildings. The nitric acid, which is excreted by these organisms as metabolic end-product, also causes severe corrosion. The microorganisms are able to metabolize inorganic substances like ammonia and NO originating from air pollution.

The natural process was remodelled by means of simulation experiments. It became evident that mineral-acid-producing bacteria play an important role in biodeterioration of building materials.

Key words

Nitrifying bacteria ammonia nitric acid nitrous acid thiobacilli H2sulphur sulphuric acid sewage concrete sandstone bricks biodeterioration 

Copyright information

© Birkhäuser Verlag 1991

Authors and Affiliations

  • M. Diercks
    • 1
  • W. Sand
    • 1
  • E. Bock
    • 1
  1. 1.Institut für Allgemeine Botanik, MikrobiologieUniversität HamburgHamburg 52(Federal Republik of Germany)

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