Assessment of cores using electroacoustic methods

Assessment of cores using electroacoustic methods

Paper in proceedings (conference paper)

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.

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.

Ultrasonic pulse method, resonance method, dynamic modulus of elasticity, strength tests on cores

Ultrasonic pulse method, resonance method, dynamic modulus of elasticity, strength tests on cores

OLEJKOVÁ, S.; HRABOVÁ, K.; LÁNÍK, J.; CIKRLE, P.

2022

09.08.2021

Trans Tech Publications Ltd

Switzerland

978-3-0357-1821-8

27th Concrete Days

1012-0394

Solid State Phenomena

322

Swiss Confederation

214

219

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