Historical mortars, plasters and substitutes

Viscomat test

• slump test
• air pore content
• workability time
• fresh mortar bulk density
• water retention property
• rheological investigations by means of Viskomat PC

• determination of the humidity content
• wet-chemical analysis for the determination of the binder composition
• X-ray diffraction and thermal analysis for the description of binder
  and aggregates
• determination of the hydratation degree of the binder
• determination of the carbonating depth
• determination of the water-soluble salts

  Determination of the dynamic elastic module (photo: Ch. Meyer)

• determination of the capillary water absorption
• determination of the compressive, flexural,tensile and adhesion tensile strength
• determination of the dynamic elastic modulus
• determination of the grading curve of the mortar aggregates
• determination of the bulk density, pure density, total porosity, open porosity and
  water absorption
• determination of the binder- aggregate proportion
• determination of the water vapor diffusion resistance characteristic
• determination of the coefficient of thermal expansion
• determination of the sorption isotherm curve and the saturation dampne
• determination of the hygro-extensibility (shrinking/swelling)
• compatibility investigations with other binders or salts
• testing on salt resistance
• scanning electron microscopy, ESMA, ESEM
• light-microscope investigations of structures