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In the laboratory, potentially contaminated building materials are precisely weighed before and after testing procedures such as filtration, ashing, or loss on ignition. Accurate weight determination supports pollutant analysis and helps to reliably assess risks to humans and the environment.
When developing a new clay building material in the laboratory, the moisture absorption of a sample is tested by weight. The moisture absorption behavior of clay building materials can be measured by the mass of accumulated water vapor. This test prevents the annoying problem that many buildings only remain damage-free if the occupants demonstrate extremely disciplined ventilation behavior. This problem can be significantly alleviated by an optimal, highly sorption-active composition of the clay plaster.
To mix a sample concrete in the laboratory, the various components (silicate fume, glass, fibers, or PCE (superplasticizer)) are precisely weighed using a scale. Precise handling is essential to ensure the concrete meets the required properties. This also prevents potential complaints or claims for damages due to incorrect concrete mixing.