For a Blaine test, operators first weigh a representative cement sample and place it into the permeability cell. The powder bed is then compacted with the plunger until it reaches the porosity required by the test method, so the bed is uniform and repeatable before airflow measurement starts.

Good powder bed preparation is mostly about consistency. The sample should be packed evenly, the cell parts should be clean and dry, and the caps, seals, and filter papers should be assembled so air can pass through the bed in a controlled way. Since Blaine results depend on airflow resistance, the packing step has to match the standard or internal lab procedure being used.

Need to confirm the best setup for your Blaine workflow? learn more about the BlaineGen Classic, or request a quote if you want help matching the packing tools and test configuration to your method.