Publication detail

Rheological Properties of Lime Mortars with Guar Gum Derivatives

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

Original Title

Rheological Properties of Lime Mortars with Guar Gum Derivatives

Type

conference paper

Language

English

Original Abstract

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.

Keywords

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

Authors

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

Released

15. 1. 2018

ISBN

978-3-0357-1240-7

Book

Special Concrete and Composites 2017

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Number

760

State

Swiss Confederation

Pages from

257

Pages to

265

Pages count

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"
}