Title Determination of steel fibre orientation in self-compacting concrete using X-ray computed tomography /
Authors Jasiūnienė, Elena ; Cicėnas, Vaidotas ; Rudžionis, Žymantas ; Grigaliūnas, Paulius
ISBN 9789163962172
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Is Part of 12th European conference on non-destructive testing (ECNDT 2018): Gothenburg, Sweden, 2018, June 11-15: proceedings / European Federation for Non-Destructive Testing (EFNDT).. Bad Breisig : EFNDT, 2018. p. 1-3.. ISSN 1435-4934. ISBN 9789163962172
Keywords [eng] steel fibre ; self-compacting concrete ; X-ray tomography
Abstract [eng] One of the factors, which determine the mechanical properties of the fibre reinforced concrete, is the spatial distribution of fibres. Distribution of fibres in the concrete structure is influenced by the casting conditions. Therefore, determination of the spatial fibre distribution is necessary for evaluation of dependences between the fibre spatial orientation and the rheological properties. The objective of this work was to determine the spatial distribution of steel fibres in selfcompacting concrete. Three mixtures with different workability properties were selected: low, moderate and high dynamic viscosity mixtures. For estimation of the spatial orientation of fibres in self-compacting concrete post processing method of X-ray computed tomography data is proposed. The developed algorithm detects and extracts fibres from the 3D data and determines the position and orientation of each fibre. The proposed approach enables the determination of the spatial distribution of fibres in selfcompacting concrete and reveals the dependencies between the rheological properties and the fibre spatial orientation. The obtained results show how the rheological properties of self-compacting concrete affect the steel fibre orientation and distribution in different sections of samples.
Published Bad Breisig : EFNDT, 2018
Type Conference paper
Language English
Publication date 2018
CC license CC license description