© Fraunhofer IBP


Drying curve, drying out#

Measurement Mass change per time unit
Standard Own testing method
Measurement object Brick, lime stone, sandstone, concrete, plasters and renders, insulation materials, wooden materials, etc.

Technical data

Sample size, circular Diameter 100 mm, 200 mm
Sample size, rectangular (L × W) 100 × 100 mm
200 × 100 mm
Basic conditions Climate chamber +23 °C, 50 % r.h.

Special features

Accredited by DAkkS
The laboratory has a flexible accreditation according to DIN EN ISO/IEC 17025
Test laboratory moisture, mortar, radiation, emmissions
  Test report can be issued


More information


  • A test specimen is saturated with water by immersion in water. The saturated specimen is sealed on the sides with aluminium foil and if necessary insulated. Then the drying out over the top face is measured in the climate chamber at +23 °C and 50 % r.h. The measured drying curve can be divided in a first drying period, which only relates to the test conditions (temperature, moisture, air velocity) and a second period, which is material dependent.
  • Simple method for determination of the transport coefficients for the drying to be used in WUFI® material data set.