Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature resistance of cement composites with randomly distributed aluminium silicate fibers
https://orcid.org/0000-0003-1345-4813
https://orcid.org/0000-0003-4066-1930
https://orcid.org/0000-0001-5734-7716
https://orcid.org/0000-0002-0955-2886
Abstract Aluminium silicate fibres are known for their low thermal conductivity and specific heat capacity, high thermal shock resistance, low weight and excellent corrosion resistance. However, their use in cement-based composites for high-temperature applications has been very limited. In this paper, the effect of randomly dispersed alumina-silicate fibres on the high-temperature resistance of cement composites is analysed as a function of the mix composition. The measurement of the basic physical, mechanical, hygric and thermal properties shows the most favourable results for the composites containing calcium aluminate cement and basalt aggregates, the fibre dosage of 1 % being an optimal solution. A comparison with the results reported by other researchers shows that in the temperature range up to 1000 °C, aluminium silicate fibres perform better than steel, glass and carbon fibres for both Portland cement and calcium aluminate cement matrices, and their effect is similar to that of basalt fibres.
Highlights High-temperature resistance of fibre-reinforced cement composites was studied. Effect of aluminium silicate fibres was analysed up to 1000 °C. The use of calcium aluminate cement and basalt aggregates led to the best results. 1 % of aluminium silicate fibre dosage appeared as an optimal solution. They performed similarly to basalt and better than steel, glass and carbon fibbers.
High-temperature resistance of cement composites with randomly distributed aluminium silicate fibers
https://orcid.org/0000-0003-1345-4813
https://orcid.org/0000-0003-4066-1930
https://orcid.org/0000-0001-5734-7716
https://orcid.org/0000-0002-0955-2886
Abstract Aluminium silicate fibres are known for their low thermal conductivity and specific heat capacity, high thermal shock resistance, low weight and excellent corrosion resistance. However, their use in cement-based composites for high-temperature applications has been very limited. In this paper, the effect of randomly dispersed alumina-silicate fibres on the high-temperature resistance of cement composites is analysed as a function of the mix composition. The measurement of the basic physical, mechanical, hygric and thermal properties shows the most favourable results for the composites containing calcium aluminate cement and basalt aggregates, the fibre dosage of 1 % being an optimal solution. A comparison with the results reported by other researchers shows that in the temperature range up to 1000 °C, aluminium silicate fibres perform better than steel, glass and carbon fibres for both Portland cement and calcium aluminate cement matrices, and their effect is similar to that of basalt fibres.
Highlights High-temperature resistance of fibre-reinforced cement composites was studied. Effect of aluminium silicate fibres was analysed up to 1000 °C. The use of calcium aluminate cement and basalt aggregates led to the best results. 1 % of aluminium silicate fibre dosage appeared as an optimal solution. They performed similarly to basalt and better than steel, glass and carbon fibbers.
High-temperature resistance of cement composites with randomly distributed aluminium silicate fibers
https://orcid.org/0000-0003-1345-4813
https://orcid.org/0000-0003-4066-1930
https://orcid.org/0000-0001-5734-7716
https://orcid.org/0000-0002-0955-2886
Abstract Aluminium silicate fibres are known for their low thermal conductivity and specific heat capacity, high thermal shock resistance, low weight and excellent corrosion resistance. However, their use in cement-based composites for high-temperature applications has been very limited. In this paper, the effect of randomly dispersed alumina-silicate fibres on the high-temperature resistance of cement composites is analysed as a function of the mix composition. The measurement of the basic physical, mechanical, hygric and thermal properties shows the most favourable results for the composites containing calcium aluminate cement and basalt aggregates, the fibre dosage of 1 % being an optimal solution. A comparison with the results reported by other researchers shows that in the temperature range up to 1000 °C, aluminium silicate fibres perform better than steel, glass and carbon fibres for both Portland cement and calcium aluminate cement matrices, and their effect is similar to that of basalt fibres.
Highlights High-temperature resistance of fibre-reinforced cement composites was studied. Effect of aluminium silicate fibres was analysed up to 1000 °C. The use of calcium aluminate cement and basalt aggregates led to the best results. 1 % of aluminium silicate fibre dosage appeared as an optimal solution. They performed similarly to basalt and better than steel, glass and carbon fibbers.
High-temperature resistance of cement composites with randomly distributed aluminium silicate fibers
Koňáková, Dana (Autor:in) / Pommer, Vojtěch (Autor:in) / Šádková, Kateřina (Autor:in) / Černý, Robert (Autor:in) / Vejmelková, Eva (Autor:in)
15.10.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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