Detail publikačního výsledku

Rheological and mechanical properties of lime-brick powder mortars with expanded clay aggregate

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

Originální název

Rheological and mechanical properties of lime-brick powder mortars with expanded clay aggregate

Anglický název

Rheological and mechanical properties of lime-brick powder mortars with expanded clay aggregate

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The rheological behaviour and mechanical properties of lightweight lime-brick powder mortars with combined expanded clay-sand aggregates are presented in this paper. The rheological investigation included the characterization of flow properties and viscoelastic properties of the fresh mortars. Flexural and compressive strengths were determined at 7 and 28 days. These mortars are Non-Newtonian thixotropic liquids with conversion from shearthickening to shear-thinning behaviour depending on expanded clay aggregate (ECA) content. Yield stress and consistency coefficient of mortars significantly increase with decreasing amount of ECA; the mortars become more rigid and more viscous. Some of the mortars reached higher flexural strengths than similar lime mortars with metakaolin and higher compressive strengths than pure lime mortars. The lightweight lime-brick powder mortar with the mass ratio of 1:1 between gravelous sand and ECA was identified as the best among the analyzed mortars.

Anglický abstrakt

The rheological behaviour and mechanical properties of lightweight lime-brick powder mortars with combined expanded clay-sand aggregates are presented in this paper. The rheological investigation included the characterization of flow properties and viscoelastic properties of the fresh mortars. Flexural and compressive strengths were determined at 7 and 28 days. These mortars are Non-Newtonian thixotropic liquids with conversion from shearthickening to shear-thinning behaviour depending on expanded clay aggregate (ECA) content. Yield stress and consistency coefficient of mortars significantly increase with decreasing amount of ECA; the mortars become more rigid and more viscous. Some of the mortars reached higher flexural strengths than similar lime mortars with metakaolin and higher compressive strengths than pure lime mortars. The lightweight lime-brick powder mortar with the mass ratio of 1:1 between gravelous sand and ECA was identified as the best among the analyzed mortars.

Klíčová slova

lightweight lime mortar; brick powder; expanded clay; rheology; flexural strength; commpresive strength

Klíčová slova v angličtině

lightweight lime mortar; brick powder; expanded clay; rheology; flexural strength; commpresive strength

Autoři

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

Rok RIV

2019

Vydáno

16.07.2018

Nakladatel

IOP Publishing

Kniha

Construmat 2018

ISSN

1757-8981

Periodikum

IOP Conference Series: Materials Science and Engineering

Svazek

385

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

6

Strany počet

6

URL

http://iopscience.iop.org/article/10.1088/1757-899X/385/1/012063

Plný text v Digitální knihovně

http://hdl.handle.net/11012/137118

BibTex

@inproceedings{BUT148920,
  author="Martin {Vyšvařil} and Tomáš {Žižlavský} and Pavla {Rovnaníková}",
  title="Rheological and mechanical properties of lime-brick powder mortars with expanded clay aggregate",
  booktitle="Construmat 2018",
  year="2018",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="385",
  number="1",
  pages="1--6",
  publisher="IOP Publishing",
  doi="10.1088/1757-899X/385/1/012063",
  issn="1757-8981",
  url="http://iopscience.iop.org/article/10.1088/1757-899X/385/1/012063"
}

Dokumenty

Vysvaril_2018_IOP_Conf._Ser.__Mater._Sci._Eng._385_012063