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Thermal, mechanical and structural properties of mortars for rehabilitation of buildings contaminated by chlorides

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00322355" target="_blank" >RIV/68407700:21110/18:00322355 - isvavai.cz</a>

  • Výsledek na webu

    <a href="https://aip.scitation.org/doi/10.1063/1.5047629" target="_blank" >https://aip.scitation.org/doi/10.1063/1.5047629</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1063/1.5047629" target="_blank" >10.1063/1.5047629</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Thermal, mechanical and structural properties of mortars for rehabilitation of buildings contaminated by chlorides

  • Popis výsledku v původním jazyce

    An adequate choice of repair mortars is critical to the success of a restoration process. Renovation of old, damp, salty walls must solve the problems related the presence of salts dissolved in water. It is often connected to reconstructing the damp-course and repairing the facade together with cleaning, pointing, surface strengthening, hydrophobizing, as well as repairing or replacing the old, destroyed plasters, etc. As salt crystallization causes cracks, efflorescence, an increase in hygroscopicity, and overall decrease in functionality and durability of masonry and coating mortars, we focused at the presented paper on the assessment of the effect of chlorides presence on the thermal, mechanical and structural properties of two types of mortars designed for building renovation. The studied coating mortars are composed of lime hydrate, Portland or white cement, crushed limestone, perlite and chemical additives improving their workability and hydrophobicity. Except of standard moist curing, part of samples is immersed into the saturated NaCl solution. The obtained results show distinct effect of chloride ingress on mortars pore size and porosity what led to the significant changes in their thermal properties and mechanical resistance. Based on the experimental findings, it can be concluded the performed tests proved the applicability of studied mortars for renovation of buildings possessing excessive moisture and salt content.

  • Název v anglickém jazyce

    Thermal, mechanical and structural properties of mortars for rehabilitation of buildings contaminated by chlorides

  • Popis výsledku anglicky

    An adequate choice of repair mortars is critical to the success of a restoration process. Renovation of old, damp, salty walls must solve the problems related the presence of salts dissolved in water. It is often connected to reconstructing the damp-course and repairing the facade together with cleaning, pointing, surface strengthening, hydrophobizing, as well as repairing or replacing the old, destroyed plasters, etc. As salt crystallization causes cracks, efflorescence, an increase in hygroscopicity, and overall decrease in functionality and durability of masonry and coating mortars, we focused at the presented paper on the assessment of the effect of chlorides presence on the thermal, mechanical and structural properties of two types of mortars designed for building renovation. The studied coating mortars are composed of lime hydrate, Portland or white cement, crushed limestone, perlite and chemical additives improving their workability and hydrophobicity. Except of standard moist curing, part of samples is immersed into the saturated NaCl solution. The obtained results show distinct effect of chloride ingress on mortars pore size and porosity what led to the significant changes in their thermal properties and mechanical resistance. Based on the experimental findings, it can be concluded the performed tests proved the applicability of studied mortars for renovation of buildings possessing excessive moisture and salt content.

Klasifikace

  • Druh

    D - Stať ve sborníku

  • CEP obor

  • OECD FORD obor

    20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/GA18-07332S" target="_blank" >GA18-07332S: Vlastnosti, trvanlivost a chování lehkých maltových směsí s minerálními plnivy</a><br>

  • Návaznosti

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

Ostatní

  • Rok uplatnění

    2018

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název statě ve sborníku

    THERMOPHYSICS 2018: 23rd International Meeting of Thermophysics 2018

  • ISBN

    9780735417045

  • ISSN

    0094-243X

  • e-ISSN

  • Počet stran výsledku

    6

  • Strana od-do

    "020035-1"-"020035-6"

  • Název nakladatele

    AIP Publishing, APL, the American Institute of Physics

  • Místo vydání

    Melville, NY

  • Místo konání akce

    Smolenice

  • Datum konání akce

    7. 11. 2018

  • Typ akce podle státní příslušnosti

    WRD - Celosvětová akce

  • Kód UT WoS článku

    000450557800035