Non-Destructive Characterization of Cement Materials Using Ultrasonic Method - Application to the Study of Carbonation

Abstract:

The objective of this study is to realize a non-destructive characterization of cementitious materials using ultrasonic method. The motivation of our work is to show that the ultrasound can be applied not only in medical imaging but also in the assessment of construction materials, which is not widely known in this domain. In order to solve the problem, the ultrasonic velocity measurement was performed on the samples before and after carbonation of a standardized mortar at different periods. The results offer the possibility to determine the mechanical properties such as Young modulus E, shear modulus G and Poisson's ratio. This is an advantage for in-situ structures in comparison with destructive methods that require destroying the samples. The main contributions of this study are: 1) Ultrasonic occultation of cement materials is a reliable method with a small margin of error; 2) The values ​​of mechanical properties found by ultrasonic method are consistent with theoretical values ​​found in the literature; 3) The evolution of these mechanical properties is consistent with the densification of the microstructure during carbonation due to the formation of CaCO₃.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 1791-1794
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.1791
• Online since: December 2014
• Authors: Son Tung Pham*
• Keywords: Carbonation, Cementitious Materials, Mechanical Property, Non-Destructive Characterization, Ultrasound

References

[1] V. Baroghel-Bouny, Conception des bétons pour une durée de vie donnée des ouvrages – Maîtrise de la durabilité vis-à-vis de la corrosion des armatures et de l'alcali réaction – Etat de l'art et guide pour la mise en œuvre d'une approche performantielle sur la base d'indicateurs de durabilité, Association française de Génie Civil, (2004).

DOI: 10.3166/ejece.13.9-19

[2] T.A. Dang, Valorisation des sédiments marins bretons comme matériaux de construction, Thèse de l'Insitut National des Sciences Appliquées de Rennes, 08 Septembre (2011).

[3] F. Bouchaala, C. Payan, V. Garnier, J.P. Balayssac, Carbonation assessment in concrete by nonlinear ultrasound, Cement and Concrete Research, Issue 41, 2011, pp.557-559.

DOI: 10.1016/j.cemconres.2011.02.006

[4] ASTM C 597 – 02, Standard test method for pulse velocity through concrete, February (2003).

[5] V.G. Papadakis, C.G. Vayenas, M.N. Fardis, Fundamental modeling and experimental investigation of concrete carbonatation, ACI material journal, 1991, pp.363-373.

[6] M. Thiery, Modelling of atmospheric carbonation of cement based materials considering the kinetic effects and modifications of the microstructure, Thèse de doctorat, L'école nationale des ponts et chausses, (2005).