Detail publikace
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
Jazyk
en
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.
Plný text v Digitální knihovně
Dokumenty
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",
annote="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.",
address="IOP Publishing",
booktitle="Construmat 2018",
chapter="148920",
doi="10.1088/1757-899X/385/1/012063",
howpublished="online",
institution="IOP Publishing",
number="1",
year="2018",
month="july",
pages="1--6",
publisher="IOP Publishing",
type="conference paper"
}