Affordable Access

Access to the full text

Mechanical properties of geopolymer foam at high temperature

Authors
  • Le, Van Su1
  • Szczypinski, Michal M.1
  • Hájková, Pavlína1, 2
  • Kovacic, Vladimir1
  • Bakalova, Totka1
  • Volesky, Lukas1
  • Hiep, Le Chi1
  • Louda, Petr1
  • 1 Faculty of Mechanical Engineering, Department of Material Science, Technical University of Liberec, Studentská 2, 461 17 , (Czechia)
  • 2 Unipetrol Centre for Research and Education, Revoluční 84, 400 01 , (Czechia)
Type
Published Article
Journal
Science and Engineering of Composite Materials
Publisher
De Gruyter
Publication Date
May 08, 2020
Volume
27
Issue
1
Pages
129–138
Identifiers
DOI: 10.1515/secm-2020-0013
Source
De Gruyter
Keywords
License
Green

Abstract

In this work, geopolymer foam composites containing waste basalt fibre (10, 30, and 50%wt) were exposed to elevated temperatures of 200, 400, 600, 800 and 1000∘C. With an increase in high temperature, the geopolymer foams material exhibits a decrease in compressive strength and bending strength. When heated above 600∘C, geopolymer foams materials exhibit a significant reduction in mechanical properties. It shows clearly with the naked eye that surface cracks in case of samples containing 10% of basalt filler. However, when increasing fillers with basalt fibres up to 30% and 50%, the cracking of the sample surface is no longer visible to the naked eye. Especially when the temperature increases, the mechanical properties also increase without decreasing in the sample of 50% by weighing to the binder. The results show that reinforcing the geopolymer foams with basalt ground fibre improves the mechanical properties at high temperatures.

Report this publication

Statistics

Seen <100 times