Assessment of Cores Using Electroacoustic Methods

Abstract:

The paper focuses on the assessment of structures using the methods described in the new edition of the ČSN EN 1371 standard. An experiment will be conducted on cores taken from reinforced concrete columns under compressive loading up to the ultimate resistance. The concrete used to make the column should correspond to old concrete used in the second half of the 20th century. The column will be made with a deliberately created defect - such as stratification or bad compaction of the concrete. When the column is damaged, different degrees of damage to the concrete along its height occur. This can be detected by a thorough examination of cores through the ultrasonic and resonance methods.

• Periodical: Solid State Phenomena (Volume 322)
• Pages: 214-219
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.322.214
• Online since: August 2021
• Authors: Sabina Hüblová*, Kristýna Hrabová, Jaromír Láník, Petr Cikrle
• Keywords: Dynamic Modulus of Elasticity, Resonance Method, Strength Tests On Cores, Ultrasonic Pulse Method

References

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[3] ČSN EN 13791 (731303) Assessment of in-situ compressive strength in structures and precast concrete components. Prague: ÚNMZ, (2020).

DOI: 10.3403/30201030

[4] P. Cikrle and D. Kocáb. Dynamic Modulus of Elasticity of Concrete. TZB- info, 2014, vol. 2014, no. 1, pp.1-8. ISSN: 1801- 4399.

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DOI: 10.3403/02050563u

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