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Published online by Cambridge University Press: 21 February 2011
A number of different types of interfacial bonding occur in concrete, including:
i) bonding between various phases (including anhydrous cement) in the hydrated cement paste (hcp) system
ii) bonding between cement and aggregates
iii) bonding between cement or mortar and the fibres in fibre-reinforced concrete; and
iv) bonding between concrete and steel reinforcing bars or prestressing cables.
The importance of these types of bonds with respect to the mechanical behaviour of concrete is discussed. It is concluded that in some systems, the mechanical properties are governed primarily by the interfacial bond; in other systems, however, this bond has only a secondary effect.