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International Society for Industrial Process Tomography

8th World Congress on Industrial Process Tomography

Analysis of Concrete Samples Withdrawn from Hydroelectric Dams Using Industrial Computed Tomography and Mechanical Computer Simulation

K. de Geus1,4, F. C. de Andrade1, V. Swinka-Filho2, S. Ribeiro Jr2, D. de A. Ussuna2, K. F. Portella2, B. L. Medeiros2, W. C. Godoi3

1Copel Geração e Transmissão S. A. (R. José Izidoro Biazetto, 158, 81200-240, Curitiba, PR, Brazil)

2Institutos Lactec (BR 116, 8813, 81531-990, Curitiba, PR, Brazil)

3Universidade Tecnológica Federal do Paraná (Av. 7 de Setembro,3165, 80230-901, Curitiba, PR, Brazil)

4Universidade Federal do Paraná (Av. Coronel Francisco Heráclito dos Santos, 210, 81531-970, Curitiba, PR, Brazil)

klaus@degeus.com.br

ABSTRACT

This work aims at presenting the results obtained in the development of an integrated solution for qualitative and quantitative analysis of defects in concrete structures from Hydroelectric Dam by means of 2D and 3D industrial computer tomography techniques. Performance evaluation of concrete structures is carried out usually through destructive methods, such as mechanical characterization by compressive strength, tensile strength and elastic modulus. A computer simulation of concrete behaviour subject to mechanical stress situations allows for performing more than one analysis of the same sample reducing the need for extraction, laboratory costs and time, as well as for digital recording aiming at future investigations. The industrial tomography system and the computational tools have enabled radiograph diagnostics of concrete samples extracted from the “Derivação do Rio Jordão” hydroelectric power plant dam in Brazil. This result shows that there is an open field for the development of simulation software capable of performing simulations of more complex objects.

Keywords Industrial computed tomography, hydroelectric power plant dams, mechanical computer simulation, non-destructive testing.

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