Modified lime-cement plasters with enhanced thermal and hygric storage capacity for moderation of interior climate

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00300226" target="_blank" >RIV/68407700:21110/16:00300226 - isvavai.cz</a>

Result on the web

<a href="http://80.www.sciencedirect.com.dialog.cvut.cz/science/article/pii/S0378778816303656" target="_blank" >http://80.www.sciencedirect.com.dialog.cvut.cz/science/article/pii/S0378778816303656</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.enbuild.2016.05.004" target="_blank" >10.1016/j.enbuild.2016.05.004</a>

Result language

angličtina

Original language name

Modified lime-cement plasters with enhanced thermal and hygric storage capacity for moderation of interior climate

Original language description

In this paper, lime-cement plasters modified by two types of PCM based admixtures are designed specifically for the moderation of relative humidity and temperature fluctuations of the interior environment. The plasters are subjected to a detailed characterization procedure including the assessment of a complex set of basic physical, hygric,thermal and mechanical properties. Experimental results show that the application of small encapsulated PCM particles leads to an up to 10% increase of open porosity, as compared with the reference plaster. Contrary to this fact, the water vapor transport is slightly decelerated, what is attributed to the encapsulating polymer shell which creates impermeable barrier for water vapor transmission. Two contradictory factors affect the liquid water transport, namely the higher porosity of PCM modified plasters and increasing content of not-wettable polymer shells. The moisture storage capacity increases with theincreasing amount of PCM in the mix. The moisture buffer value is improved due to the utilization ofboth PCM admixtures, the developed plasters can be classified as good moisture buffering materials. The thermal conductivity of modified plasters is greatly improved, as well as the heat storage capacity, the additional phase change enthalpy being up to 13 J/g. Although the inclusion of PCM into the lime-cement matrix decreases the mechanical strength, the achieved values of tested mechanical parameters are still satisfactory for the application of the designed plasters in building practice. In summary, PCM modified plasters can be considered a prospective solution for the moderation of interior climate in contemporary buildings.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JI - Composite materials

OECD FORD branch

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Project

<a href="/en/project/GA14-22909S" target="_blank" >GA14-22909S: Investigation of application of phase change materials in energy-storage plasters</a><br>

Continuities

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

Publication year

2016

Confidentiality

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

Name of the periodical

Energy and Buildings

ISSN

0378-7788

e-ISSN

—

Volume of the periodical

126

Issue of the periodical within the volume

8

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

15

Pages from-to

113-127

UT code for WoS article

000381529300012

EID of the result in the Scopus database

2-s2.0-84969850225