Academic thesis

Marie Tanzmann: Crack grouting in concrete aggrieved by alcali silica reaction. Using the example of two sculptures made of concrete and located on the Giebichenstein-Bridge in Halle (Saale). Tests to determine appropriate masses for crack grouting based on micro-cements Back
Language: Original   -   Translation
Overview:  
 
Abstract: The sculptures made of concrete from 1928 located on the Giebichenstein-Bridge in Halle (Saale) show a strong developed net of cracks. The alkali silica reaction between aggregate and concrete is to be seen as chief cause. To stop the reaction any influx of water has to be prevented. This should be done by crack grouting. Extensively surveys had been made with micro-cements based on granulated cinder (low content of alkali and the high sulphate resistance). Till this day the cracks move. Therefore the grouting material should be made more flexible to improve its durability. Polymere dispersions and the filler material Plastorit were used as modifications. Survey was made on handling of grouting material as well as their physico-mechanical and pore-properties.

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Keywords: alcali silica reaction, low content of alkali and the high sulphate resistance, polymere modified cement, crack grouting, concrete
Details:
  • academic institution:  FH Potsdam
  • kind of theses:  Diplomarbeit
  • main Tutor:  Prof. Gottfried Hauff
  • assistant Tutor:  Karsten Böhm
  • date:  2012
  • pages:  180
  • pictures:  133
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