Non destructive evaluation of delamination and interface in concrete structure

Title: Non destructive evaluation of delamination and interface in concrete structure
Author(s): J.F. Lataste, M. Krause, A. Moczko, D. Breysse, C. Maierhofer
Paper category : conference
Book title: RILEM Symposium on On Site Assessment of Concrete, Masonry and Timber Structures - SACoMaTiS 2008
Editor(s): L. Binda, M. di Prisco, R. Felicetti
Print-ISBN: 978-2-35158-061-5
e-ISBN: 978-2-35158-075-2
Publisher: RILEM Publications SARL
Publication year: 2008
Pages: 473 - 482
Total Pages: 10
Nb references: 17
Language: English

Abstract: Concrete is generally regarded as a continuous, homogeneous and isotropic material. An "interface", as generally defined, is a physical limit between two materials. Such a limit can be viewed as an alteration of the mechanical continuity of concrete and then as a possible alteration of its properties.
Engineers are interested in the knowledge of this object due to its significance: either an indicator of damage, or a parameter governing damages (e.g. by its influence on the transfer properties of concrete), or an internal geometrical characteristic.
Non destructive tests are used to obtain data on this object: to detect, to identify, to locate its extension and its depth, to characterise the intensity and activity (possible evolution) of the interface.
In the frame of the TC Rilem 207 INR, a state of the art is being prepared presenting techniques used today to study interfaces. Questions linked to the study of interface in concrete are treated: what is looked for? At what scale? Why it is difficult?...
The ability and limits of the available test methods are discussed in this paper, in order to highlight the actual research and development needs.

Online publication: 2009-05-26
Publication type : full_text
Public price (Euros): 0.00