Publication detail

New Thermal Insulating Material Based on Geocement

PETRANEK, V. GUZII, S. KRYVENKO, P. SOTIRIADIS, K.

Original Title

Type

journal article - other

Language

English

Original Abstract

A new thermal insulating material was developed on the basis of a geocement, formulated as Na2O.Al2O3.6SiO2.20H2O. Ground limestone and aluminosilicate pellets were used as fillers for its production (composition: geocement – 64.29 wt. [%]; fillers – 35.71 wt. [%]). This material, which is applied having a thickness of 3.0-4.5 mm, swells when it is exposed to an external heat flow of 1273 K average temperature. Swelling is due to the matrix phases and filler dehydration, which include heulandite, ussingite, sodium zeolite and other phases. As a result, a finely porous glassy aluminosilicate frame of jadeite-albite composition is formed, which is characterized by low thermal conductivity (0.09-0.175 W.m-1.K-1). The developed material can be used to protect and to insulate wooden, metal and concrete surfaces from an one-sided heat source.

Keywords

Geocement; fillers; thermal conductivity; new thermal insulating materials

Authors

PETRANEK, V.; GUZII, S.; KRYVENKO, P.; SOTIRIADIS, K.

RIV year

2013

Released

8. 11. 2013

Location

Switzerland

ISBN

1022-6680

Periodical

Advanced Materials Research

Year of study

838-841

Number

2013

State

Swiss Confederation

Pages from

183

Pages to

187

Pages count

BibTex

@article{BUT105763,
  author="Vít {Petránek} and Segrii {Guzii} and Pavlo {Kryvenko} and Konstantinos {Sotiriadis}",
  title="New Thermal Insulating Material Based on Geocement",
  journal="Advanced Materials Research",
  year="2013",
  volume="838-841",
  number="2013",
  pages="183--187",
  doi="10.4028/www.scientific.net/AMR.838-841.183",
  issn="1022-6680"
}