Evaluation of Degradation of Concrete Exposed to High Temperature by Means of Ultrasonic Pulse Method

Abstract:

Ultrasonic pulse method is a non-destructive testing method used for testing materials. For concrete, it is used mostly for determination of dynamic elasticity modulus, compressive strength, homogeneity, to determine depth of cracks or as a supportive method for testing frost resistance. Applicability of using ultrasonic pulse method for evaluation of degradation of concrete exposed to high temperature was proved. This method is unambiguously utilizable for rationalization of experimental work focused on optimization of composition of concrete resistant to high temperatures. Ultrasonic pulse method can be also used for mapping the degree of degradation of concrete elements and structures, which can be measured by means of direct sounding. Appropriateness of the use of ultrasonic pulse method for evaluation of degradation of concrete exposed to high temperature was proved. This method is unambiguously applicable for rationalization of experimental work focused on optimization of composition of concrete resistant to high temperatures. Ultrasonic pulse method can be also used for mapping degree of degradation of concrete elements and structures, which can be measured by means of direct sounding.

• Periodical: Applied Mechanics and Materials (Volumes 284-287)
• Pages: 1315-1319
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.284-287.1315
• Online since: January 2013
• Authors: Jiří Brožovský, Lenka Bodnárová, Rudolf Hela, Rostislav Drochytka, Vlastimil Hela
• Keywords: Concrete, Dynamic Modulus of Elasticity, High-Temperature, Ultrasonic Pulse Method, Velocity

References

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