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VYŠVAŘIL, M. ŽIŽLAVSKÝ, T. ROVNANÍKOVÁ, P.
Originální název
Rheological and mechanical properties of lime-brick powder mortars with expanded clay aggregate
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
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.
Klíčová slova
lightweight lime mortar; brick powder; expanded clay; rheology; flexural strength; commpresive strength
Autoři
VYŠVAŘIL, M.; ŽIŽLAVSKÝ, T.; ROVNANÍKOVÁ, P.
Vydáno
16. 7. 2018
Nakladatel
IOP Publishing
ISSN
1757-8981
Periodikum
IOP Conference Series: Materials Science and Engineering
Ročník
385
Číslo
1
Stát
Spojené království Velké Británie a Severního Irska
Strany od
Strany do
6
Strany počet
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" }