Detail publikačního výsledku

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

JANSOVÁ, K.; FLÁDR, J.; BÍLÝ, P.; KALINA, L.

Originální název

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

Anglický název

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

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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

Anglický abstrakt

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

Klíčová slova

Absorbance; Concretes; Frost resistance; Impregnation; Lithium compounds; Silicates; Tensile strength

Klíčová slova v angličtině

Absorbance; Concretes; Frost resistance; Impregnation; Lithium compounds; Silicates; Tensile strength

Autoři

JANSOVÁ, K.; FLÁDR, J.; BÍLÝ, P.; KALINA, L.

Rok RIV

2024

Vydáno

23.05.2023

Nakladatel

IOP Publishing

Místo

Telč

Kniha

IOP Conference Series: Materials Science and Engineering

ISSN

1742-6588

Periodikum

Journal of Physics: Conference Series

Svazek

2568

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

8

Strany počet

8

URL

https://iopscience.iop.org/article/10.1088/1742-6596/2568/1/012004

Plný text v Digitální knihovně

http://hdl.handle.net/11012/244946

BibTex

@inproceedings{BUT184569,
  author="Klára {Jansová} and Josef {Fládr} and Petr {Bílý} and Lukáš {Kalina}",
  title="The influence of lithium silicate impregnation on the properties of surface layer of cementitious composites",
  booktitle="IOP Conference Series: Materials Science and Engineering",
  year="2023",
  journal="Journal of Physics: Conference Series",
  volume="2568",
  number="1",
  pages="1--8",
  publisher="IOP Publishing",
  address="Telč",
  doi="10.1088/1742-6596/2568/1/012004",
  issn="1742-6588",
  url="https://iopscience.iop.org/article/10.1088/1742-6596/2568/1/012004"
}

Dokumenty

Jansová_2023_J._Phys. _Conf._Ser._2568_012004