Numerical analysis of cracking in fiber reinforced lime renders

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F13%3A00217827" target="_blank" >RIV/68407700:21110/13:00217827 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Numerical analysis of cracking in fiber reinforced lime renders
Original language description
Cracking behavior of lime mortar renders subjected to shrinkage is numerically investigated byFEM. The render materials selected for the study include ordinary lime mortar, lime mortar with increased tensile strength,two mortars with different natural fibers (goat hairs and pig bristles) and two mortars reinforced with different content of short PVA fibers (0.5% and 2% by volume). The analyses simulate the crack evolution and allow us to shed light on the mechanism of the render deterioration. The studyreveals that increasing the mortar?s tensile strength may not improve its durability, when it is subjected to volume changes. Even though the number of cracks decreases, the cracks exhibit wider opening displacements and higher stressing takes place onthe interface with the substrate, leading to delamination failure. A qualitatively better performance is observed with those fiber reinforced mortars, in which the fibers provide sufficient crack-bridging action. If the maximum cohesive t
Czech name
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Czech description
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Project
<a href="/en/project/DF11P01OVV008" target="_blank" >DF11P01OVV008: High-performance and compatible lime mortars for extreme application in restoration, repair and preventive maintenance of architectural heritage</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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