Shrinkage crack

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Shrinkage crack is a technical term from the construction industry for cracks in components, especially those made of wood , concrete or plaster . These cracks are caused by evaporation or chemical conversion of stored liquid. The "shrinkage" - that is, the reduction in volume - results in changed stress conditions in the material, which trigger the formation of shrinkage cracks. The tendency towards shrinkage cracks depends on the rate of evaporation and the pressure on the materials. It is particularly pronounced in storage wood and concrete.


  1. Cracks in concrete surfaces. Technical information sheet, published by the Association of German Steel Fiber Manufacturers e. V. ( Memento from June 11, 2016 in the Internet Archive ), PDF file (1,933 kB), accessed on May 13, 2016
  2. Gänßmantel, Jürgen: Classification, assessment and repair of cracked plasters, etc. Facades , PDF file (1,425 kB), accessed on May 13, 2016

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