Determination of Poroelastic Parameters of Porous Building Materials

Autor: Jozefa Lukovičová, Rudolf Podoba, Ivan Baník, Gabriela Pavlendová
Rok vydání: 2014
Předmět:
Zdroj: Defect and Diffusion Forum. 353:189-192
ISSN: 1662-9507
DOI: 10.4028/www.scientific.net/ddf.353.189
Popis: Variations of sorption moisture in the capillary porous materials result in strong fluid-skeleton interactions due to molecular and surface forces, which produce moisture-induced deformation. The effect of moisture sorption on the non-linear elastic behavior of hygroscopic porous building materials has been experimentally investigated showing strong influence of moisture especially in the lower moisture content range. In the framework poroelasticity moisture influence on elastic behavior is described by two poroelastic coefficients, which present the fluid-skeleton coupling. This paper presents an application of the procedure for the determination of the coupling coefficients for medieval brick.
Databáze: OpenAIRE