The influence of lithium silicate impregnation on the properties of surface layer of cementitious composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F23%3APU148948" target="_blank" >RIV/00216305:26310/23:PU148948 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/23:00368045

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1742-6596/2568/1/012004" target="_blank" >https://iopscience.iop.org/article/10.1088/1742-6596/2568/1/012004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/2568/1/012004" target="_blank" >10.1088/1742-6596/2568/1/012004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The influence of lithium silicate impregnation on the properties of surface layer of cementitious composites

Popis výsledku v původním jazyce

The degradation processes in surface layers of cementitious composites can be mitigated either by optimizing of the material or by applying surface protection. In this paper, the effect of lithium silicate (LS) sealer is investigated. Water absorbance is studied on standard cement mortar; frost resistance and porosity are examined on two types of concrete (C30/37 and C50/60). The results indicate that LS impregnation improves the water absorbance only slightly and only in the case of short exposure to water; water absorbance was reduced by 15-25% immediately after applying the LS sealer, but the effect was negligible (2-8%) after 24 hours of immersion in water. Frost resistance was not affected by LS impregnation, but a significant improvement of mechanical parameters (flexural tensile strength and weight loss after 50 freeze-thaw cycles) was observed. The resistivity of the concrete surface was increased by LS impregnation by 36-40%, indicating the improvement of quality of the surface layer, while the porosity was practically unaffected

Název v anglickém jazyce

The influence of lithium silicate impregnation on the properties of surface layer of cementitious composites

Popis výsledku anglicky

The degradation processes in surface layers of cementitious composites can be mitigated either by optimizing of the material or by applying surface protection. In this paper, the effect of lithium silicate (LS) sealer is investigated. Water absorbance is studied on standard cement mortar; frost resistance and porosity are examined on two types of concrete (C30/37 and C50/60). The results indicate that LS impregnation improves the water absorbance only slightly and only in the case of short exposure to water; water absorbance was reduced by 15-25% immediately after applying the LS sealer, but the effect was negligible (2-8%) after 24 hours of immersion in water. Frost resistance was not affected by LS impregnation, but a significant improvement of mechanical parameters (flexural tensile strength and weight loss after 50 freeze-thaw cycles) was observed. The resistivity of the concrete surface was increased by LS impregnation by 36-40%, indicating the improvement of quality of the surface layer, while the porosity was practically unaffected

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA22-04828S" target="_blank" >GA22-04828S: Nový směr k udržitelným stavebním materiálům prostřednictvím pokročilých povrchových úprav na bázi lithných silikátů</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

IOP Conference Series: Materials Science and Engineering

ISBN

—

ISSN

1742-6588

e-ISSN

1742-6596

Počet stran výsledku

8

Strana od-do

1-8

Název nakladatele

IOP Publishing

Místo vydání

Telč

Místo konání akce

Telč

Datum konání akce

23. 5. 2023

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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