Non-Destructive Assessment of Concrete Structures: Reliability and Limits of Single and Combined Techniques

State-of-the-Art Report of the RILEM Technical Committee 207-INR

herausgegeben von: Denys Breysse

Verlag: Springer Netherlands

Buchreihe : RILEM State-of-the-Art Reports

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik" , Springer Professional "Wirtschaft"

Einloggen, um Zugang zu erhalten

Über dieses Buch

This book gives information on non destructive techniques for assessment of concrete structures. It synthesizes the best of international knowledge about what techniques can be used for assessing material properties (strength) and structural properties (geometry, defects...). It describes how the techniques can be used so as to answer a series of usual questions, highlighting their capabilities and limits, and providing advices for a better use of techniques. It also focuses on possible combinations of techniques so as to improve the assessment. It is based on many illustrative examples and give in each case references to standards and guidelines.

Inhaltsverzeichnis

Frontmatter

Chapter 1. Non destructive assessment of concrete structures: usual combinations of techniques

Abstract

Condition assessment of building materials is critical when reassessing existing structures, since material ageing can result in performance loss, degradation of safety, and maintenance costs. For these reasons, the use of non destructive testing (NDT) has become more common to assess the condition of existing reinforced concrete structures.

Denys Breysse

Chapter 2. Presentation of common non destructive techniques

Abstract

The ultrasonic method can be applied by the reflection or the transmission of elastic waves in the concrete or on its surface. The first method, called “ultrasonic echo” or “pulse echo” is explained in the next section (§2).

Denys Breysse

Chapter 3. Estimation of on-site compressive strength of concrete

Abstract

The finding that concrete strength in a structure was not correctly described by the strength of specimens moulded and stored under controlled standard conditions, led to the study of the relation between actual and potential strength of concrete.

Marios N. Soutsos, Denys Breysse, Vincent Garnier, Arlindo Goncalves, Andre Valente Monteiro

Chapter 4. Control of thickness/dimensions of pavements, foundations, elements and piles

Abstract

This chapter is devoted to the assessment of the geometry of concrete components. This is of interest for many structures, for which the testing solutions may differ, according to the environment and to constraints like accessibility. We have chosen to discuss possible solutions for pavements, thin elements (mainly concrete slabs and tunnel shells) and foundations (shallow foundations and piles).

Johannes Hugenschmidt, Martin Krause, Denys Breysse, Ernst Niederleithinger, Alexander Taffe

Chapter 5. Assessment of bonding, delamination and interfaces

Abstract

Concrete can be viewed as a continuous, homogeneous and isotropic material when the investigation does not consider the microstructure scale (this level will not be considered in this report). “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 mechanical and physical properties.

Jean-François Lataste, Patrice Rivard

Chapter 6. Localization of grouting faults in post tensioned concrete structures

Abstract

The investigation of post-tensioned tendon ducts is one of the very important and fascinating testing problems for concrete structures. Much progress was achieved in the past two decades including multidisciplinary research. This includes large area measuring.

Martin Krause

Chapter 7. Ruptures of prestressing cables

Abstract

The structures involved are prestressed concrete structures. The aim is to detect either failures of prestressing cables (or strands) or as a preventive measure to detect corrosion or damages before failure.

Jean-Paul Balayssac, Carmen Andrade, Javier Sanchez Monteiro, Horst Scheel

Chapter 8. Non destructive assessment of concrete structures: combination of different techniques for addressing new challenges

Abstract

The combination of techniques is central to this book. In the six previous chapters it has been discussed, how geometrical parameters or material properties can be assessed. However, it has not been analyzed in detail, from an analytical point of view, how and why these combinations work. What are the possible limits and their most interesting fields of interest? In this last chapter, our objective is to highlight some general principles so as to better understand what (and why) can be efficient strategies of combination. New challenges will be addressed and priorities for future developments will be identified.

Denys Breysse, Vincent Garnier

Backmatter

Titel: Non-Destructive Assessment of Concrete Structures: Reliability and Limits of Single and Combined Techniques
herausgegeben von: Denys Breysse
Verlag: Springer Netherlands
Electronic ISBN: 978-94-007-2736-6
Print ISBN: 978-94-007-2735-9
DOI: https://doi.org/10.1007/978-94-007-2736-6