Dependence of ultrasonic pulse propagation velocity on free water content in concrete structure under tropical climate conditions

Authors

  • C. Rodríguez Fadragas Departamento de Física, Universidad Central de Las Villas
  • M. Rodríguez González Departamento de Física, Universidad Central de Las Villas

DOI:

https://doi.org/10.3989/mc.2011.60910

Keywords:

ultrasonic pulse velocity, water content, concrete, modeling

Abstract


One of the fundamental applications of the ultrasonic pulse velocity method (UPV) to the study of concrete consists in the estimation of the mechanical properties. The precision on the estimation of theses properties may be dependent on the incidence of several factors, one of them is the free water content absorbed by the sample of concrete under working conditions. In this paper it is shown that the modeling of the dependence between the ultrasonic pulse velocity and the content of free water in the hardened concrete requires the non linear approach. We propose two models, one of them being a non linear mathematical model fitting the experimental data points, and the other of them being a simple physical model structured by considering the concrete material as composed as heterogeneous medium. Besides, it is discussed under which condition the linear approach for modelling proposed by other authors can be used.

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References

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Published

2012-03-30

How to Cite

Rodríguez Fadragas, C., & Rodríguez González, M. (2012). Dependence of ultrasonic pulse propagation velocity on free water content in concrete structure under tropical climate conditions. Materiales De Construcción, 62(305), 39–53. https://doi.org/10.3989/mc.2011.60910

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Section

Research Articles