Reference : Condition evaluation of the existing structure prior to overlay (chapter 3)
Parts of books : Contribution to collective works
Engineering, computing & technology : Civil engineering
Condition evaluation of the existing structure prior to overlay (chapter 3)
Courard, Luc mailto [Université de Liège - ULiège > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil >]
Trevino, Manuel [Center for Transportation Research, The University of Texas at Austin (TX), U.S.A. > > > >]
Bissonnette, Benoît mailto [Université Laval > Génie civil > > >]
Bonded cement-based material overlays for the repair, the lining or the strengthening of slabs and pavements
Bissonnette, Benoît mailto
Courard, Luc mailto
Fowler, David
Granju, Jean-Louis
Rilem State of the Art Reports - Volume 3
[en] concrete ; overlay ; diagnosis ; surface ; NDT ; testing ; standards
[en] The knowledge and analysis of the causes of degradations is the first step in repairing existing concrete structures. The assessment is performed by using destructive and non destructive methods. These allow detecting modification of physical, chemical and/or mechanical properties of concrete: cracking, deformation, spalling, carbonation, etc., are various causes of distress, with potential irreversible consequences on concrete structure behaviour.
A description of specific methods for pavements and structural slabs is proposed; it is usually recommended to combine complementary methods for efficient diagnosis. This chapter wants to offer an overview of techniques and references that could help the user in selecting the most appropriate investigation program.
Researchers ; Professionals

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