Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: capillary diffusion coefficient

Sortuj według:

Ogranicz wyniki do:

The effect of the accuracy of capillary diffusion coefficient determination on moisture state of curtain walls during rainfall

Alsabry A.

International Journal of Applied Mechanics and Engineering

2011

Vol. 16, no 3

637-648

The article presents a brief description of basic methods to determine the moisture transfer coefficient in capillary-porous materials. The method to determine the moisture transfer coefficient within the hygroscopic range is well documented and can easily be used. A calculation model for the moisture diffusion coefficient based on the water absorption coefficient, mass water content in material volume unit as a result of capillary rise, capillary tortuosity and capillary saturation was developed. The study showed that the evaluation of the moisture state of a curtain wall material must allow for both changes in relative air humidity and precipitation volume, which result in an increase in the moisture gradient, additional stresses and reduction in material stability. In addition, a material with high moisture content is characterized by deteriorated thermal insulation properties.