gamma 41

Calcium sulphate hemihydrate powder, obtained from special gypsum stone, subsequent baked in methane ovens at controlled temperatures.

  • Water / powder ratio 100 / 140
  • Setting time 10-20 min
  • Linear setting expansion 0,15%
  • Flexural strength 5 N/sqmm
  • Compression strength 12 N/sqmm
  • Residual at 100 µm < 1%
  • Fire reaction class A1

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