Detail publikačního výsledku

Effect of natural lightweight aggregate on fresh state properties of lime mortars

ŽIŽLAVSKÝ, T.; VYŠVAŘIL, M.

Originální název

Effect of natural lightweight aggregate on fresh state properties of lime mortars

Anglický název

Effect of natural lightweight aggregate on fresh state properties of lime mortars

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Paper studies fresh state and rheological properties of lightweight mortars prepared with constant workability using natural lightweight aggregates, and hydrated or natural hydraulic lime as binder. Fresh state properties are studied by standardised tests and rheological characteristics are obtained utilizing hybrid rheometer. Density of fresh mortar decreased accordingly to the loose bulk densities of aggregates used, while the water retention value remained very high with minor variations. The air content in fresh mortar with pumice as an aggregate was surprisingly high, which may be caused by the open porosity of the aggregate in combination with the test design. The influence of the aggregate weight on the rheological properties was most apparent in the case of hysteresis loop size and mortar stability, where lightweight aggregate with exception of zeolite showed higher loss tangent and lower critical strain, thus shorter linear viscoelastic region.

Anglický abstrakt

Paper studies fresh state and rheological properties of lightweight mortars prepared with constant workability using natural lightweight aggregates, and hydrated or natural hydraulic lime as binder. Fresh state properties are studied by standardised tests and rheological characteristics are obtained utilizing hybrid rheometer. Density of fresh mortar decreased accordingly to the loose bulk densities of aggregates used, while the water retention value remained very high with minor variations. The air content in fresh mortar with pumice as an aggregate was surprisingly high, which may be caused by the open porosity of the aggregate in combination with the test design. The influence of the aggregate weight on the rheological properties was most apparent in the case of hysteresis loop size and mortar stability, where lightweight aggregate with exception of zeolite showed higher loss tangent and lower critical strain, thus shorter linear viscoelastic region.

Klíčová slova

lightweight aggregate; zeolite; lava; pumice; NHL; rheology; water retention; air content; flow properties; viscoelastic properties

Klíčová slova v angličtině

lightweight aggregate; zeolite; lava; pumice; NHL; rheology; water retention; air content; flow properties; viscoelastic properties

Autoři

ŽIŽLAVSKÝ, T.; VYŠVAŘIL, M.

Rok RIV

2021

Vydáno

08.02.2021

Nakladatel

American Institute of Physics

Místo

Melville, NY, USA

ISBN

978-0-7354-4066-1

Kniha

SPECIAL CONCRETE AND COMPOSITES 2020: 17th International Conference

ISSN

1551-7616

Periodikum

AIP conference proceedings

Svazek

2021

Číslo

2322

Stát

Spojené státy americké

Strany od

1

Strany do

6

Strany počet

6

URL

https://aip.scitation.org/doi/abs/10.1063/5.0041828

BibTex

@inproceedings{BUT169328,
  author="Tomáš {Žižlavský} and Martin {Vyšvařil}",
  title="Effect of natural lightweight aggregate on fresh state properties of lime mortars",
  booktitle="SPECIAL CONCRETE AND COMPOSITES 2020: 17th International Conference",
  year="2021",
  journal="AIP conference proceedings",
  volume="2021",
  number="2322",
  pages="1--6",
  publisher="American Institute of Physics",
  address="Melville, NY, USA",
  doi="10.1063/5.0041828",
  isbn="978-0-7354-4066-1",
  issn="0094-243X",
  url="https://aip.scitation.org/doi/abs/10.1063/5.0041828"
}