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13 ] confirmed that it was easy bleeding at the interface between BFRP bars and concrete when the large diameter BFRP bars were usedresultingin a decreased bond strength between BFRP bars and concrete
Bar geometries Amount of confinement around the bar Surface conditions of the bar For reinforced concrete , it is necessaryto createa suitable bond between steel bars and the surrounding concrete
a reinforcement pipecan ... preventthe corrosion of steel bars ... maintain the bond performance between steel bars and concrete , and improve the bearing capacity of concrete structures
For the reinforced concrete material , it is necessaryto createsuitable bond between steel bars and surrounding concrete
Corrosioncausesthe increase in bond between the reinforcing steel bars and concrete
a reduction in the steel cross - sectional area , which affects both the ductility and the strength of the steel , and a volumetric expansion ,causesspalling of concrete and loss of bond strength in between the concrete and steel
waterproofing systemleadsto corrosion of reinforcement steel bars and spalling concrete eventually
Composite deck ... the webscreatesa structural bond between the steel deck and the concrete
the stress distribution is more complicatedleadingto less bond strength of the steel bars and reinforced concrete in the joints region
into strengthened solid structures or memberscan be createdinto strengthened solid structures or members
to earthquake resistance of buildingsleadsto earthquake resistance of buildings
sliding at the interface between the two materialsto preventsliding at the interface between the two materials
to increased crack width and deflection under cyclic loadingcontributedto increased crack width and deflection under cyclic loading
to reduction in flexural strength of the beam ( Mehta and Monterio 1997leadingto reduction in flexural strength of the beam ( Mehta and Monterio 1997
any relative movement between the reinforcement and the surrounding concreteto preventany relative movement between the reinforcement and the surrounding concrete
The cracks(passive) may be caused byThe cracks
of adhesive stress and friction [ 17is composedof adhesive stress and friction [ 17
the behavior of the column(passive) was influenced bythe behavior of the column
in some very deep embedments of anchorsresultingin some very deep embedments of anchors