Detail publikačního výsledku

Rheological Properties of Lime Mortars with Guar Gum Derivatives

VYŠVAŘIL, M.; HEGROVÁ, M.; ŽIŽLAVSKÝ, T.

Originální název

Rheological Properties of Lime Mortars with Guar Gum Derivatives

Anglický název

Rheological Properties of Lime Mortars with Guar Gum Derivatives

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

In this paper, the behaviour of fresh lime mortars modified by etherified derivatives of guar (hydroxypropyl guar (HPG), carboxymethyl hydroxypropyl guar (CMHPG) and native guar gum (GG)) is assessed with the purpose of exploring a new application of such derivatives as lime mortar admixtures. The rheological parameters (relative yield stress, consistency coefficient and fluidity index) and viscoelastic properties were correlated with flow table tests, relative density measurements, water retention abilities of mortars and air content in mortars. Results were seen to be strongly dependent on substituents of the guar. Non-ionic derivative (HPG) exhibited the biggest impact on the yield stress and elastic properties of the mortars. The ionic CMHPG showed the thickening effect. GG had low impact on water retention, while HPG and CMHPG displayed high water retention capability.

Anglický abstrakt

In this paper, the behaviour of fresh lime mortars modified by etherified derivatives of guar (hydroxypropyl guar (HPG), carboxymethyl hydroxypropyl guar (CMHPG) and native guar gum (GG)) is assessed with the purpose of exploring a new application of such derivatives as lime mortar admixtures. The rheological parameters (relative yield stress, consistency coefficient and fluidity index) and viscoelastic properties were correlated with flow table tests, relative density measurements, water retention abilities of mortars and air content in mortars. Results were seen to be strongly dependent on substituents of the guar. Non-ionic derivative (HPG) exhibited the biggest impact on the yield stress and elastic properties of the mortars. The ionic CMHPG showed the thickening effect. GG had low impact on water retention, while HPG and CMHPG displayed high water retention capability.

Klíčová slova

rheology; lime mortar;, guar gum; water retention; air content; yield stress; viscosity

Klíčová slova v angličtině

rheology; lime mortar;, guar gum; water retention; air content; yield stress; viscosity

Autoři

VYŠVAŘIL, M.; HEGROVÁ, M.; ŽIŽLAVSKÝ, T.

Rok RIV

2019

Vydáno

15.01.2018

ISBN

978-3-0357-1240-7

Kniha

Special Concrete and Composites 2017

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Číslo

760

Stát

Švýcarská konfederace

Strany od

257

Strany do

265

Strany počet

9

BibTex

@inproceedings{BUT144009,
  author="Martin {Vyšvařil} and Michaela {Hegrová} and Tomáš {Žižlavský}",
  title="Rheological Properties of Lime Mortars with Guar Gum Derivatives",
  booktitle="Special Concrete and Composites 2017",
  year="2018",
  journal="Key Engineering Materials (print)",
  number="760",
  pages="257--265",
  doi="10.4028/www.scientific.net/KEM.760.257",
  isbn="978-3-0357-1240-7",
  issn="1013-9826"
}