3D Non-destructive Micro-structure Characterization of Aramid and Steel Fibre-Reinforced Concrete using X-ray Computed Tomography

Savas Erdem, Ezgi Gurbuz


A non-destructive X-ray computed tomography technique was utilized to investigate 3D microstructure (voids, fibres and cracks) of the composite materials subjected to impact loading. A total of three different types of concrete mixes with and without fibres of steel and aramid fibres were cast and investigated. In general, the results indicate that all specimens experienced a significant increase in air voids after being subjecting to the high rates of loading but the aramid and steel mixes experienced less and small cracks. In addition, the fibre distribution was less homogeneous throughout the specimen in the case of the aramid fibre composite.

Keywords: Concrete; Non-destructive analysis; 3D microstructure; X-ray computed tomography.


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ISSN (online) 2422-8702