Application of the Darcy and Richards equations for modelling of water capillary rise in building materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00346824" target="_blank" >RIV/68407700:21110/21:00346824 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1088/1742-6596/1736/1/012042" target="_blank" >https://doi.org/10.1088/1742-6596/1736/1/012042</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/1736/1/012042" target="_blank" >10.1088/1742-6596/1736/1/012042</a>

Result language

angličtina

Original language name

Application of the Darcy and Richards equations for modelling of water capillary rise in building materials

Original language description

This paper presents the application of the Darcy and Richards equations, describing water flow and dynamic changes of the water content in porous medium, for numerical modeling of water capillary rise in the selected building materials. The numerical simulations of unsaturated and variably saturated water flow in the studied materials were performed in FEFLOW commercial computational software, by DHI-Wasy, Germany. The developed model represented a wall section constructed of aerated concrete blocks, covered by mortar prepared using blended cement with biomass ash addition. The physical and water retention characteristics of the modeled materials were based on the previously performed laboratory measurements andliterature research. The assumed initial conditions reflected air dry wall with limited moisture, while the boundary conditions allowed modeling of capillary rise due to direct contact of the studied materials with water with variable pressure head. The results of numerical calculations allowed observation of the time-dependent changes in the moisture content of building materials in relation to their physical properties and variable boundary conditions.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/8JPL19027" target="_blank" >8JPL19027: Application of municipal sewage sludge ash in production of eco-efficient construction materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Journal of Physics: Conference Series

ISBN

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ISSN

1742-6596

e-ISSN

1742-6596

Number of pages

8

Pages from-to

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Publisher name

IOP Publishing Ltd

Place of publication

Bristol

Event location

Lviv

Event date

Nov 23, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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