Publication detail

Physical-mechanical properties and durability of hydraulic lime-based mortars with non-traditional biopolymers

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

Original Title

Physical-mechanical properties and durability of hydraulic lime-based mortars with non-traditional biopolymers

Type

conference paper

Language

English

Original Abstract

The study focuses on the influence of addition of four different biopolymers in various doses (0.1%, 0.5%, and 1%) on the physical-mechanical properties and durability of NHL 3.5 mortars prepared with constant water/binder ratio and the binder/aggregate ratio of 1 : 2 by weight. The flow table test was carried out and the specimens were tested for flexural and compressive strength at the age of 7 and 28 days. The durability coefficient for the flexural strength was calculated after 15 freezing-thawing cycles. All the admixtures have dosage-dependent slump reducing effect. The strengths were increased in comparison with mortar with no admixture, the most significantly in the case of highest dose of carrageenan and diutan gum. All biopolymers with the exception of diutan gum increased the durability coefficient with increasing dosage. Sodium salt of alginic acid has been found the most effective in the case of durability improvement.

Keywords

natural hydraulic lime, sodium alginate, carrageenan, diutan gum, xanthan gum, compressive strength, flexural strength, durability

Authors

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

Released

25. 7. 2019

Publisher

Czech Technical University in Prague

Location

Praha

ISBN

978-80-01-06594-5

Book

Special Concrete and Compoistes 2018

ISBN

2336-5382

Periodical

Acta Polytechnica CTU Proceedings

Year of study

22

State

Czech Republic

Pages from

150

Pages to

154

Pages count

5

URL

https://ojs.cvut.cz/ojs/index.php/APP/issue/view/677

BibTex

@inproceedings{BUT157835,
  author="Tomáš {Žižlavský} and Martin {Vyšvařil} and Pavla {Rovnaníková}",
  title="Physical-mechanical properties and durability of hydraulic lime-based mortars with non-traditional biopolymers",
  booktitle="Special Concrete and Compoistes 2018",
  year="2019",
  journal="Acta Polytechnica CTU Proceedings",
  volume="22",
  pages="150--154",
  publisher="Czech Technical University in Prague",
  address="Praha",
  doi="10.14311/APP.2019.22.0150",
  isbn="978-80-01-06594-5",
  issn="2336-5382",
  url="https://ojs.cvut.cz/ojs/index.php/APP/issue/view/677"
}