Publication detail

Mortars with Crushed Lava Granulate for Repair of Damp Historical Buildings

PAVLÍK, Z. POKORNÝ, J. PAVLÍKOVÁ, M. ZEMANOVÁ, L. ZÁLESKÁ, M. VYŠVAŘIL, M. ŽIŽLAVSKÝ, T.

Original Title

Mortars with Crushed Lava Granulate for Repair of Damp Historical Buildings

Type

journal article in Web of Science

Language

English

Original Abstract

In this paper, crushed lava granulate was used as full silica sand replacement in composition of repair mortars based on hydrated lime, natural hydraulic lime, or cement-lime binder. Lava granules were analyzed by X-ray fluorescence analysis (XRF), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Particle size distribution of both silica and lava aggregates was assessed using standard sieve analysis. Hygrothermal function of the developed lightweight materials was characterized by the measurement of complete set of hygric, thermal, and structural parameters of the hardened mortar samples that were tested for both 28 days and 90 days cured specimens. As the repair mortars must also meet requirements on mechanical performance, their compressive strength, flexural strength, and dynamic Young’s modulus were tested. The newly developed mortars composed of lava aggregate and hydrated lime or natural hydraulic lime met technical, functional, compatibility, and performance criteria on masonry and rendering materials, and were found well applicable for repair of historically valuable buildings.

Keywords

repair mortars; compatibility; lava granulate; functional properties; hygrothermal performance

Authors

PAVLÍK, Z.; POKORNÝ, J.; PAVLÍKOVÁ, M.; ZEMANOVÁ, L.; ZÁLESKÁ, M.; VYŠVAŘIL, M.; ŽIŽLAVSKÝ, T.

Released

30. 10. 2019

Publisher

MDPI

Location

Basel, Switzerland

ISBN

1996-1944

Periodical

Materials

Year of study

12

Number

21

State

Swiss Confederation

Pages from

1

Pages to

20

Pages count

20

URL

https://www.mdpi.com/1996-1944/12/21/3557

Full text in the Digital Library

http://hdl.handle.net/11012/195689

BibTex

@article{BUT159577,
  author="Zbyšek {Pavlík} and Jaroslav {Pokorný} and Milena {Pavlíková} and Lucie {Zemanová} and Martina {Záleská} and Martin {Vyšvařil} and Tomáš {Žižlavský}",
  title="Mortars with Crushed Lava Granulate for Repair of Damp Historical Buildings",
  journal="Materials",
  year="2019",
  volume="12",
  number="21",
  pages="1--20",
  doi="10.3390/ma12213557",
  issn="1996-1944",
  url="https://www.mdpi.com/1996-1944/12/21/3557"
}