Detail publikace

Properties of Aerial Lime-Based Mortars with Chitosan Ethers

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

Originální název

Properties of Aerial Lime-Based Mortars with Chitosan Ethers

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

This paper studies the possibility of usage of chitosan derivatives (hydroxypropyl chitosan (HPCH) and carboxymethyl chitosan (CMCH)) as admixtures for aerial lime-based mortars. The physical-mechanical properties were studied on the specimens prepared with constant water/binder ratio and binder/aggregate ratio 1:3 by weight using siliceous sand with the grain size up to 4 mm and doses of admixture ranging between 0.5 and 10‰. The properties were studied on the specimens up to 365 days. The addition of admixtures improves workability of mortar, but in the early stages also decreases strengths of mortars, especially the compressive strength. The addition of HPCH significantly reduces the bulk densities of specimens, while CMCH decreases them just slightly. With the increasing amount of time, the difference in strengths between reference and tested mortars decreases, reaching the similar values after 90 days of curing time. The further ageing causes additional growth of strengths with a significantly higher increase in the case of CMCH.

Klíčová slova

lime mortar, chitosan ethers, strength, carbonation, water absorption, porosity

Autoři

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

Vydáno

20. 6. 2018

ISBN

978-3-0357-1348-0

Kniha

Binders, Materials and Technologies in Modern Constructions IV

ISSN

1662-9779

Periodikum

Solid State Phenomena

Číslo

276

Stát

Švýcarská konfederace

Strany od

75

Strany do

82

Strany počet

8

BibTex

@inproceedings{BUT148519,
  author="Tomáš {Žižlavský} and Martin {Vyšvařil} and Patrik {Bayer} and Pavla {Rovnaníková}",
  title="Properties of Aerial Lime-Based Mortars with Chitosan Ethers",
  booktitle="Binders, Materials and Technologies in Modern Constructions IV",
  year="2018",
  journal="Solid State Phenomena",
  number="276",
  pages="75--82",
  doi="10.4028/www.scientific.net/SSP.276.75",
  isbn="978-3-0357-1348-0",
  issn="1662-9779"
}