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Water absorption

Measurement Capillary water absorption, a-value
Standards DIN EN ISO 15148, DIN EN 1015-18, DIN EN 12087
Measurement object Mineral materials like brick, lime stone, sandstone, concrete, plasters and renders, insulation materials, coatings, etc.

Technical data

Sample size, circular Diameter 90 mm, 100 mm, 200 mm
Sample size, rectangular (L × W) 100 mm × 100 mm
200 mm × 100 mm
180 mm × 130 mm
Sample size, prism (L × W × H) 40 mm × 40mm × 40 mm
  Irregular surface areas are possible as well, minimum area 50 cm²

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 reports can be issued.

More information

  • The water absorption coefficient is used to evaluate the capillary water uptake of building materials and an important data to estimate moisture protection of constructions.
  • With the knowledge of the water absorption coefficient the calculation of the capillary transport coefficients for the water uptake is possible. These coefficients are used in simulations with WUFI®.