Detection of material defects in reinforced concrete slab using active thermography

• Autorzy: Różański L. , Ziopaja K.
• Języki publikacji: EN

Abstrakty

EN

In order to validate the practical usage of passive and active infrared thermography for bridge inspection, a number of experimental studies have been conducted. Concrete slab of dimension of 60×60×10 cm made of concrete of strength class C35/45 was the object of research. Steel bars type B500SP with a diameter of ø10 and ø12 mm were used as reinforcement of analyzed slab. Four structure discontinuities imitating damages were implemented inside the slab. Using various methods of thermal excitation, the sensitivity of the slab response using infrared cameras was investigated. The paper presents the results of experiment and FEM simulation.

Słowa kluczowe

EN

active IR (pulsed or step heating) thermography; damage detection; non-destructive testing

• Wydawca: Wydawnictwo PAK
• Czasopismo: Measurement Automation Monitoring
• Rocznik: 2017
• Tom: Vol. 63, No. 3
• Strony: 82--85
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Różański L.

• Poznan University of Technology, Faculty of Mechanical Engineering and Management, 3 Piotrowo St., 60-965 Poznań

autor

Ziopaja K.

• Poznan University of Technology, Faculty of Civil and Environmental Engineering, 5 Piotrowo St., 60-965 Poznań

Bibliografia

• [1] Maierhofer Ch., Arndt R., Rőlling M.: Influence of concrete properties on the detection of voids with impulse-thermography. Infrared Physics & Technology, 49, pp. 213-217, 2007.
• [2] Milovanović B. and Pečur I. B.: Review of active IR thermography for detection and characterization of defects in reinforced concrete. Journal of Imaging, 2(11), 2016.
• [3] Minkina W.: Thermovision Measurements – Instruments and Methods. Publishing Office of Czestochowa University of Technology, Częstochowa, 2004. (in Polish).
• [4] Różański L., Ziopaja K.: Applicability analysis of active IR thermography and selected signal processing methods for technical conditions assessment of bridge elements. QIRT Conference Open Archives on http://qirt.gel.ulaval.ca/index.php (10.21611/ qirt.2016.157), pp. 955-964, 2016.
• [5] Suszyński, Z.: Active thermography - models, methods of measurement, thermal imaging processing. Publishing Office of Koszalin University of Technology, Koszalin, 2014. (in Polish).
• [6] Świderski, W.: Nondestructive testing of composite materials by IR thermography methods. Monograph, WITU, Zielonka, 2010. (in Polish).
• [7] Więcek B., De Mey G.: Infrared thermovision. Fundamentals and applications. PAK Publishing House, Warszawa, 2011. (in Polish).
• [8] Vaghefi K., de Melo e Silva H. A., Harris D. K. and Ahlborn T. M.: Application of thermal IR imagery for concrete bridge inspection. PCI Convection and National Bridge Conference, 22-26 October 2011, Salt Lake City, 2011.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).