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Volume 38 Issue 2
Apr.  2019
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Article Navigation >  CARSOLOGICA SINICA  > 2019  >  38(2): 265-268
ZHANG Lingling. Preliminary experimental study on time-temperature effects of gypsum rock corrosion in static water[J]. CARSOLOGICA SINICA, 2019, 38(2): 265-268. doi: 10.11932/karst20190211
Citation: ZHANG Lingling. Preliminary experimental study on time-temperature effects of gypsum rock corrosion in static water[J]. CARSOLOGICA SINICA, 2019, 38(2): 265-268. doi: 10.11932/karst20190211
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Preliminary experimental study on time-temperature effects of gypsum rock corrosion in static water

doi: 10.11932/karst20190211

  • The 3rd Hydrological & Engineering Geological Team of Shanxi Province, Jinzhong, Shanxi 030620,China

  • Publish Date: 2019-04-25
    Abstract
  • This work studies the time-temperature effects of gypsum rock corrosion in static water in laboratory. The mechanism of gypsum rock corrosion is observed by the Scanning Electron Microscope (SEM) method. The results indicate that gypsum rock would be corroded more seriously with temperature rising and time prolonging. The weight loss rate of gypsum rock increases with temperature rising and time prolonging. The corrosion rate of gypsum rock also increases with the rise of temperature. So does the concentration of Ca2+ in water. The main reasons for gypsum rock corrosion are Fick diffusion and water swelling stress resulted from water absorption. The main corrosion ways of gypsum rock in static water are fracturing caused by water swelling, columnar splitting and flake exfoliation.

     

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