Publication detail

Use of natural zeolite aggregate in restoration lime renders

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

Original Title

Use of natural zeolite aggregate in restoration lime renders

Type

conference paper

Language

English

Original Abstract

Natural zeolites have been used with limes already in the Roman times and its perspectives of effective use as a pozzolanic additive to lime or cement composites were studied by a number of authors. The use of zeolitic materials for the production of lightweight aggregates in concrete is already known. However, the application of natural zeolite as an aggregate in lime renders (suitable for restoration and conservation) has not been investigated yet. In this study, the utilization of natural zeolite as lightweight aggregate in lime renders and natural hydraulic lime renders has been investigated, therefore. The results revealed improved strengths of air lime renders with zeolite despite the fact, that the renders showed higher total porosity and water absorption than those with quartz aggregate. Increased porosity of renders resulted in improvement of their frost resistance and salt crystallization resistance. The analyzed renders with natural zeolite aggregate have a very good potential for practical applications because their properties are significantly enhanced, as compared with the common lime renders with quartz aggregate.

Keywords

zeolite; lime render; pozzolan; frost resistance; salt crystallization resistance; water transport

Authors

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

Released

16. 7. 2019

Publisher

RILEM Publications S.A.R.L.

Location

Francie

ISBN

978-2-35158-221-3

Book

PRO 130: 5th Historic Mortars Conference

Pages from

261

Pages to

272

Pages count

12

BibTex

@inproceedings{BUT157714,
  author="Martin {Vyšvařil} and Patrik {Bayer} and Tomáš {Žižlavský} and Pavla {Rovnaníková}",
  title="Use of natural zeolite aggregate in restoration lime renders",
  booktitle="PRO 130: 5th Historic Mortars Conference",
  year="2019",
  pages="261--272",
  publisher="RILEM Publications S.A.R.L.",
  address="Francie",
  isbn="978-2-35158-221-3"
}