Influence of Basalt Fibres and Aggregates on the Thermal Expansion of Cement-Based Composites

Abstract:

The influence of basalt fibres and aggregates on the thermal expansion of cement composites is analyzed. Four different composite mixes based on aluminous cement are designed and tested. Experimental results show that the application of basalt components leads to the reduction of the increase of open porosity after high temperature loading from 47% to 36%, as compared with the reference mix. The matrix densities exhibit almost similar values for all studied composites; the differences are only up to 16%. The thermal strain is more than 50% lower when basalt aggregates are used instead of silica sand.

• Periodical: Advanced Materials Research (Volume 1054)
• Pages: 17-21
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1054.17
• Online since: October 2014
• Authors: Dana Koňáková*, Veronika Špedlová, Monika Čáchová, Eva Vejmelková, Robert Černý
• Keywords: Basalt Aggregates, Basalt Fibres, Basic Physical Properties, Concrete, Thermal Expansion

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