Manufacturing Technology 2019, 19(1):71-76 | DOI: 10.21062/ujep/246.2019/a/1213-2489/MT/19/1/71

Non-destructive Evaluation of Pore Size and Structural Change in Geopolymer Composite Materials with Added Fibres

Marcela Kolínová1, Totka Bakalova2, Lukáš Voleský1, Pavel Kejzlar2, Vladimir Kovačíč2
1 Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
2 Faculty of Mechanical Engineering, Department of Material Science, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic

This paper introduces a non-destructive method of analysis of the internal structure, occurrence and pore size in a specific volume of geopolymer composite material, with and without the addition of inorganic fibres in the form of meshes using computed tomography. A desktop micro-tomography device Skyscan 1272 was used for visualization and accurate analysis of the interlacing points in the basalt and carbon fibre meshes and for evaluating the adhesion of the fibres to the matrix of the composite material. An appropriate resolution was selected both for displaying the interlacing points in the inorganic fibres and for visualization and analysis of the geopolymer structures. The method makes it possible to evaluate the differences in the structure of the studied materials in a non-destructive way and to check the adhesion of the fibres to the base material.

Keywords: Geopolymer composite, Inorganic fibres, Interlacing point, Adhesion, Computed tomography
Grants and funding:

Ministry of Interior in the programme “The Safety Research of the Czech Republic” 2015- 2020 (BV III/1-VS).
Ministry of Education, Youth and Sports for the project LO1201, performed in the framework of the targeted support of the “National Programme for Sustainability I”
Technical University of Liberec as part of the project "The study and evaluation of the material's structure and properties" with the support of the Specific University Research Grant, as provided by the Ministry of Education, Youth and Sports of the Czech Republic.

Published: February 1, 2019  Show citation

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Kolínová M, Bakalova T, Voleský L, Kejzlar P, Kovačíč V. Non-destructive Evaluation of Pore Size and Structural Change in Geopolymer Composite Materials with Added Fibres. Manufacturing Technology. 2019;19(1):71-76. doi: 10.21062/ujep/246.2019/a/1213-2489/MT/19/1/71.
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