Detail publikace

Thermal Behavior of an Intumescent Alkaline Aluminosilicate Composite Material for Fire Protection of Structural Elements

SOTIRIADIS, K. GUZZI, S. G. MÁCOVÁ, P. VIANY, A. DVOŘÁK, K. DRDÁCKÝ, M.

Originální název

Thermal Behavior of an Intumescent Alkaline Aluminosilicate Composite Material for Fire Protection of Structural Elements

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The behavior of a composite material, consisting of metakaolin-based alkaline aluminosilicate binder, granules of the same initial composition used as a swelling agent, and calcium carbonate, was studied during firing in the temperature range 25°C–1,000°C. A combination of techniques was used to investigate its microstructure, composition, and properties. The material developed porosity at 200°C, largely contributed by water loss from the swelling agent, resulting in expansion and decrease in thermal conductivity and mechanical strength. Between 400°C and 800°C the thermal insulation characteristics further improved. At 1,000°C, crystallization of new phases with a decrease in the amorphous content produced a small contraction and increased thermal conductivity and mechanical strength. The material exhibited good stability with appropriate characteristics for use as intumescent coating for fire protection of structural elements. Modification of the binder:granules ratio may allow producing composites for specific applications.

Klíčová slova

Alkaline aluminosilicate materials; Metakaolin; Intumescent coatings; Fire protection; X-ray micro-computed tomography

Autoři

SOTIRIADIS, K.; GUZZI, S. G.; MÁCOVÁ, P.; VIANY, A.; DVOŘÁK, K.; DRDÁCKÝ, M.

Vydáno

20. 3. 2019

Nakladatel

ASCE Library

Místo

United States of America

ISSN

1943-5533

Periodikum

JOURNAL OF MATERIALS IN CIVIL ENGINEERING

Ročník

31

Číslo

6

Stát

Spojené státy americké

Strany od

1

Strany do

9

Strany počet

9

BibTex

@article{BUT156335,
  author="Konstantinos {Sotiriadis} and Sergii G. {Guzzi} and Petra {Mácová} and Alberto {Viany} and Karel {Dvořák} and Miloš {Drdácký}",
  title="Thermal Behavior of an Intumescent Alkaline Aluminosilicate Composite Material for Fire Protection of Structural Elements",
  journal="JOURNAL OF MATERIALS IN CIVIL ENGINEERING",
  year="2019",
  volume="31",
  number="6",
  pages="1--9",
  doi="10.1061/(ASCE)MT.1943-5533.0002702",
  issn="1943-5533"
}