Detail publikačního výsledku

Characterization of aerial lime-based mortars with addition of biopolymers

ŽIŽLAVSKÝ, T.; VYŠVAŘIL, M.; ROVNANÍKOVÁ, P.

Originální název

Characterization of aerial lime-based mortars with addition of biopolymers

Anglický název

Characterization of aerial lime-based mortars with addition of biopolymers

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The paper studies the influence of addition of viscosity enhancing biopolymers (diutan gum, gellan gum, xanthan gum, carrageenan, and sodium salt of alginic acid) in the doses of 0.1%, 0.5% and 1% on the fresh state, and physical-mechanical properties of hardened mortars. The mortars were prepared with the constant water/binder ratio and the binder/aggregate ratio of 1:3 by weight. The properties have been studied after 7 and 28 days of curing time. All the admixtures, with the exception of gellan gum, improved workability (by lowering the value of spread) in comparison with reference mortar. Most of them also increased the amount of air on the fresh mortar, thus decreasing the density of fresh mortar and also the bulk density of hardened specimens. The addition of biopolymers caused certain decrease of strengths, but there was observable trend of decreasing difference between the reference and tested mortars with the increasing amount of time.

Anglický abstrakt

The paper studies the influence of addition of viscosity enhancing biopolymers (diutan gum, gellan gum, xanthan gum, carrageenan, and sodium salt of alginic acid) in the doses of 0.1%, 0.5% and 1% on the fresh state, and physical-mechanical properties of hardened mortars. The mortars were prepared with the constant water/binder ratio and the binder/aggregate ratio of 1:3 by weight. The properties have been studied after 7 and 28 days of curing time. All the admixtures, with the exception of gellan gum, improved workability (by lowering the value of spread) in comparison with reference mortar. Most of them also increased the amount of air on the fresh mortar, thus decreasing the density of fresh mortar and also the bulk density of hardened specimens. The addition of biopolymers caused certain decrease of strengths, but there was observable trend of decreasing difference between the reference and tested mortars with the increasing amount of time.

Klíčová slova

aerial lime-based mortar; diuthan gum; xanthan gum; carrageenan; sodium salt of alginic acid; compressive strength; flexural stregth

Klíčová slova v angličtině

aerial lime-based mortar; diuthan gum; xanthan gum; carrageenan; sodium salt of alginic acid; compressive strength; flexural stregth

Autoři

ŽIŽLAVSKÝ, T.; VYŠVAŘIL, M.; ROVNANÍKOVÁ, P.

Rok RIV

2019

Vydáno

12.07.2018

Nakladatel

IOP Publishing

Kniha

International Conference Building Materials, Products and Technologies

ISSN

1757-8981

Periodikum

IOP conference series. Materials science and engineering

Svazek

379

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

7

Strany počet

7

URL

http://iopscience.iop.org/article/10.1088/1757-899X/379/1/012006

Plný text v Digitální knihovně

http://hdl.handle.net/11012/137119

BibTex

@inproceedings{BUT148964,
  author="Tomáš {Žižlavský} and Martin {Vyšvařil} and Pavla {Rovnaníková}",
  title="Characterization of aerial lime-based mortars with addition of biopolymers",
  booktitle="International Conference Building Materials, Products and Technologies",
  year="2018",
  journal="IOP conference series. Materials science and engineering",
  volume="379",
  number="1",
  pages="1--7",
  publisher="IOP Publishing",
  doi="10.1088/1757-899X/379/1/012006",
  issn="1757-8981",
  url="http://iopscience.iop.org/article/10.1088/1757-899X/379/1/012006"
}