Development of advanced plasters for insulation and renovation of building constructions with regard to their hygrothermal behaviour

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU127973" target="_blank" >RIV/00216305:26110/18:PU127973 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.cemconcomp.2018.05.014" target="_blank" >https://doi.org/10.1016/j.cemconcomp.2018.05.014</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cemconcomp.2018.05.014" target="_blank" >10.1016/j.cemconcomp.2018.05.014</a>

Result language

angličtina

Original language name

Development of advanced plasters for insulation and renovation of building constructions with regard to their hygrothermal behaviour

Original language description

Thermal insulation and renovation plasters are in still greater demand for the insulation and renovation of existing as well as new buildings. The main reason is the need for thermal protection with the purpose of reducing the energy consumption of existing buildings and the construction of near zero energy buildings. Suitable thermal insulation brings considerable savings in terms of energy costs and reduction of pollutants and emissions generated during heating. Protection of the environment and human health is also very important. Another reason is the need for the materials to be able to withstand increased humidity, which is a problem in older buildings. Research is aimed at developing materials which would be ecological, exhibit capillary activity, have an optimal ratio of thermal insulation and mechanical properties, high porosity, and low diffusion resistance. This paper describes the results of the development of plasters useable for thermal insulation and renovation of buildings and the study of their hygrothermal behaviour including a simulation of thermal and humidity conditions of a selected construction detail. Measurements and simulations showed that the newly developed mixtures had similar or better properties than the reference lime-cement plaster. The optimal mixture in terms of physical, thermal insulation, and mechanical properties was mixture 7 made with lime hydrate and fly ash 2. Simulations were run in the software THERM and WUFI so as to calculate the lowest surface temperatures for 3 different implementations of a jamb. The results showed that the newly developed plasters delivered markedly higher surface temperatures than the reference plaster, i.e. Mixture 1. All the new plasters tested in jamb detail 3 showed a surface temperature above 12.94 °C based on a determination of the dew point according to ČSN 73 0540–2 at a temperature of +21 °C and relative humidity of 60%.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/LO1408" target="_blank" >LO1408: AdMaS UP – Advanced Building Materials, Structures and Technologies</a><br>

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

CEMENT & CONCRETE COMPOSITES

ISSN

0958-9465

e-ISSN

1873-393X

Volume of the periodical

2018

Issue of the periodical within the volume

92

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

47-55

UT code for WoS article

000442190700005

EID of the result in the Scopus database

2-s2.0-85047817566