At highly congested reinforcement regions, which is common at beam-column joint area, clear spacing between parallel bars becomes less than maximum normal aggregate size (20mm) which has not been addressed in any design code and specifications. Limited clear spacing between parallel bars (herein after thin cover) is one of the causes which affect anchorage performance. In this study, an experim...

This paper studied the effects of reinforcement corrosion on bond performance between rebar and concrete. Tests were carried out to evaluate the degradation of bond between reinforcing steel and concrete for different corrosion levels of reinforcing steel. A series of 20 specimens of different concrete strength with various reinforcing steel corrosion levels were designed and manufactured. Each...

Concrete pavement recycling is a relatively simple process that involves breaking, removing and crushing hardened concrete from an acceptable source to produce recycled concrete aggregate (RCA). The formal process of RCA production typically involves an initial evaluation of the existing source concrete; pavement preparation, which may include removal of an asphalt overlay; pavement breaking, r...

Glass fiber-reinforced polymer (GFRP)-reinforced concrete (RC) can be defined as a cementitious material in which the reinforcing secondary phase consists corrosion-resistant GFRP rebars. For this next-generation structural material, experimental flexural tests highlight how postcracking response is strongly affected by amount of area together with size-scale. In work, cohesive/overlapping crac...

As a preliminary study for the erection of floating structures using high performance concrete, this paper examines the bond characteristics between concrete and the reinforcing bar. Since the floating structure is constructed in aquatic environment, corrosion of the reinforcing steel is likely to develop more prematurely than in onshore structure in case of concrete cracking. A solution to thi...

Abstract Corrosion in reinforced concrete is an important feature which can lead to increased deformation and cracking, as well premature failure. In the present work, macro-mechanical modelling of corrosion performed, namely degradation bond–slip between steel. A mixed-mode damage model adopted, interaction law stress acting neighbourhood concrete–steel bar interface taken into account. Bond–s...