Impact of surface treatment of historic bricks on the process of water vapours diffusion

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F20%3A00348295" target="_blank" >RIV/68407700:21610/20:00348295 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.4028/www.scientific.net/KEM.868.98" target="_blank" >https://doi.org/10.4028/www.scientific.net/KEM.868.98</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.868.98" target="_blank" >10.4028/www.scientific.net/KEM.868.98</a>

Result language

angličtina

Original language name

Impact of surface treatment of historic bricks on the process of water vapours diffusion

Original language description

The article is dealing with the impact of selected types of surface finish of historic bricks on their diffusion properties, i.e. on the process of their spontaneous self-drying. Within the pilot experiment was monitored diffusion flow of water vapours going from humid brick fragment through its surface finish to the surrounding environment. Brick fragment was saturated with water to a degree usually corresponding to common humidity of uninsulated underground brickwork of historic buildings. The surrounding environment had parameters of the common heated object for residential or administrative purposes or an object for storage of things sensitive to the impact of high relative air humidity. Test results proved that any surface finish of the brickwork, even its hydrophobisation is significantly slowing down the process of drying of the masonry compared to the speed of drying of the untreated brickwork. It is evident from the course of lines of diffusion flows that the process of water vapours diffusion is most intense at the beginning of the period (about 5 to 10 days) and after this period the diffusion flow speed goes to the long-term stabilisation of diffusion flow speed, in such a way that its course is in average corresponding to linear functional dependence on time. In the conclusion of the article, we introduce on practical example calculation of real-time drying up of the masonry in historic building selected space flooded with flood water where is now running process of natural drying without additional humidity sources.

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

20102 - Construction engineering, Municipal and structural engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Article name in the collection

Proceedings of the 21st Conference on the Rehabilitation and Reconstruction of Buildings. Key Engineering Materials Vol. 868

ISBN

978-3-0357-3653-3

ISSN

1013-9826

e-ISSN

1662-9795

Number of pages

7

Pages from-to

98-104

Publisher name

Transtech Publications

Place of publication

Zürich

Event location

Praha

Event date

Nov 28, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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