Evaluation of Concrete Elements with X-Ray Computed Tomography

AbstractNowadays X-ray computed tomography (CT) imaging is being applied in the field of structural engineering. Scanning a concrete specimen by using X-ray tomography provides an insight into the inner structure without the need to destroy the specimen. As an example, the internal structure of ceme...

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Bibliographic Details
Published in:Journal of materials in civil engineering 2018-09, Vol.30 (9)
Main Authors: Balázs, György L, Lublóy, Éva, Földes, Tamás
Format: Article
Language:English
Subjects:
Building materials
Civil engineering
Computation
Computed tomography
Concrete
Concrete construction
Concrete structures
Construction materials
Deterioration
Freeze thaw cycles
Porosity
Prestressing
Structural engineering
Technical Note
Technical Notes
Transport phenomena
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Summary:AbstractNowadays X-ray computed tomography (CT) imaging is being applied in the field of structural engineering. Scanning a concrete specimen by using X-ray tomography provides an insight into the inner structure without the need to destroy the specimen. As an example, the internal structure of cement-based materials is of high importance for understanding and modeling the transport phenomena that influence its durability. Some methods have been applied to observe and quantify the size and distribution of aggregate and cracks. In this study we would like demonstrate some examples of the potential of X-ray CT to study the three-dimensional evaluation of concrete structures and building material. Based on the technical potential of medical CT we believe that our studies provide enough indication for the successful use of CT for concrete and concrete elements to determine aggregate size and distribution, pore or void size and distribution, deterioration due to freeze-thaw cycles and porosity, level of deterioration of concrete due to fire, and level of deterioration of steel prestressing wires due to corrosion.
ISSN:0899-1561
1943-5533
DOI:10.1061/(ASCE)MT.1943-5533.0002389