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Analysis of Measured Parameters in Relation to the Amount of Fibre in Lightweight Red Ceramic Waste Aggregate Concrete

Author

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  • Marie Horňáková

    (Department of Structural Mechanics, Faculty of Civil Engineering, VSB—Technical University of Ostrava, L. Podéště 1875, Poruba, 70800 Ostrava, Czech Republic)

  • Petr Lehner

    (Department of Structural Mechanics, Faculty of Civil Engineering, VSB—Technical University of Ostrava, L. Podéště 1875, Poruba, 70800 Ostrava, Czech Republic)

Abstract

The present study provides a correlation and regression analysis of lightweight waste aggregate concretes with varying degrees of fibre reinforcement. The concrete mix contains pre-soaked red ceramic waste aggregate, expanded clay coarse aggregate and Portland cement. Copper-coated crimped steel fibre was used as the reinforcement. The experimental results included properties measured by destructive test methods—compressive strength, splitting tensile strength, static modulus of elasticity, the limit of proportionality, shear strength; and by non-destructive test methods—dynamic modulus of elasticity and surface electrical resistivity. These properties were analysed to study the relevancy and significance between non-destructive and destructive methods of measurement in the case of different amounts of fibre. The results show differences in the degree of fit to the linear and quadratic regression curves for pairs of destructive and non-destructive test results. As expected, the linear relationship can be applied in a few cases, but the quadratic curve must be used for a few pairs. Another observation is that it is not possible to neglect the amount of fibre in the correlation analyses of the measured properties.

Suggested Citation

  • Marie Horňáková & Petr Lehner, 2022. "Analysis of Measured Parameters in Relation to the Amount of Fibre in Lightweight Red Ceramic Waste Aggregate Concrete," Mathematics, MDPI, vol. 10(2), pages 1-15, January.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:2:p:229-:d:723042
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    References listed on IDEAS

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    1. Maria Cristina Collivignarelli & Giacomo Cillari & Paola Ricciardi & Marco Carnevale Miino & Vincenzo Torretta & Elena Cristina Rada & Alessandro Abbà, 2020. "The Production of Sustainable Concrete with the Use of Alternative Aggregates: A Review," Sustainability, MDPI, vol. 12(19), pages 1-34, September.
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