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Experimental investigations of damage evolution in concrete during bending by continuous micro-CT scanning

Abstract

The paper describes experimental investigation results of fracture in notched concrete beams under quasi-static three-point bending. To visualize 3D fracture in concrete under bending, an extended X-ray micro-computed tomography system was used, i.e. the tomography system SkyScan 1173 was connected to the loading machine ISTRON 5569. This combined system enabled to shot images of deforming concrete beams during a continuous deformation process, i.e. without beams' unloading for scanning. The shape, volume, size of cracks and pores were non-destructively measured during deformation. The maximum crack width during continuous micro-CT scanning was higher by about 20–30% than in the beam that was subjected to unloading for scanning.

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Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
MATERIALS CHARACTERIZATION pages 40 - 52,
ISSN: 1044-5803
Language:
English
Publication year:
2019
Bibliographic description:
Skarżyński Ł., Tejchman-Konarzewski A.: Experimental investigations of damage evolution in concrete during bending by continuous micro-CT scanning// MATERIALS CHARACTERIZATION -,iss. 154 (2019), s.40-52
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.matchar.2019.05.034
Verified by:
Gdańsk University of Technology

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