The SonReb Method: Critical Review and Practical Aspects

Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 10)

Abstract

Current regulations require surveys on materials in order to identify one or more representative values of the in-situ concrete strength. In this context, the SonReb method is widespread. It correlates the in-situ concrete strength with the ultrasonic pulse velocity and rebound-hammer index. The method improves the reliability of both non-destructive methodologies that are less reliable if considered separately. However, the method neglects the numerical dispersion of the acquired resistances, making uncertain the reliability of every representative value identified. Uncertainty is inherent not only in the variability of the parameters that determine the values, but also in the use of literature formulations calibrated on “recurring concretes”, i.e. concretes characterized by properties evenly variables (age, w/c ratio, …) that don’t allow wider use. In this work, a critical review of the SonReb method is proposed, through a purely statistical approach with the aid of surveys on some school buildings in the province of Foggia built in the 60s and 80s.

Keywords

SonReb method In-situ concrete strength Material surveys Safety assessment of existing buildings 

Notes

Acknowledgements

The research presented in this article was partially funded by the Department of Civil Protection, Project ReLUIS-DPC 2014-2018.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.DICATEChPolitecnico di BariBariItaly

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