Onset of setting and soundness

Common standard procedures apply for determining the onset of setting, the start of stiffening and soundness.


Water demand according Puntke

The water demand according Puntke plays a decisive role for comparing different binders such as cement, flay ash or calcined clay. The German Guideline "Selfcompacting Concrete (in German), 2003, edited by Deutschen Ausschuss für Stahlbeton (DAfStb), describes the procedure in detail.


Shrinkage cone

The shrinkage cone provides the opportunity of measuring shrinkage and expansion of liquid construction materials right after mixing via the onset of setting and upto the start of stiffening. A laser follows touchless the deformation of the samples surface. Thus plastic shrinkage can be observed and recorded. There are different temperature controlled cone sizes available for mortar and concrete.