method of measurement of internal strain of capillary-porous hygroscopic materials during hydrothermal treatment

摘要

A method of measurement of internal strain of capillary-porous hygroscopic materials during hydrothermal treatment, at which for determining strain of separate layers stratification of material is conducted. Furthermore a reference model is used, which is manufactured from material identical to the material of model and a section identical to the model's one, the ends of reference model are insulated from evaporation of moisture, separated into the layers, assembled together and during or after hydrothermal treatment difference is measured between the strains in appropriate layers of the reference model and the sample.