The influence of specimen size on the dynamic properties of lightweight concrete determined by the resonance method

The paper examines the way specimen size influences measurements by the resonance method. The experiment was performed with a lightweight concrete with a porous aggregate (Liapor). Several sets of specimens were made; they differed both in size and type (drilled cylindrical cores, cast prisms). All...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-07, Vol.583 (1), p.12028
Main Authors: Kocab, D, Zitt, P, Danek, P, Canek, M, Alexa, M, Hanus, P
Format: Article
Language:English
Subjects:
Lightweight concretes
Prisms
Resonance
Resonant frequencies
Statistical analysis
Storage modulus
Torsional vibration
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Summary:The paper examines the way specimen size influences measurements by the resonance method. The experiment was performed with a lightweight concrete with a porous aggregate (Liapor). Several sets of specimens were made; they differed both in size and type (drilled cylindrical cores, cast prisms). All the specimens were tested for the natural frequency of longitudinal, transverse, and torsional vibration, which were then used to calculate values of the dynamic modulus of elasticity. The outcome of this experiment is a statistical analysis of the test results.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/583/1/012028