| The objective of this study is to evaluate the effect of corrosion on the bond characteristics between the reinforcing steel and the surrounding concrete.; The results indicate that as the corrosion level increased, the tension stiffening of the concrete decreased and also the bond between the reinforcing steel and the concrete diminished considerably. Further, the comparison was made between the normal portland cement (NPC) concrete with a water-cement ratio (w/c) of 0.32, NPC concrete a with w/c ratio of 0.52 and NPC concrete with high volume (58% by total weight of cementitious materials) fly ash content, in terms of bond characteristics and corrosion resistance. It was found that as the w/c ratio increased, the corrosion resistance as well as the bond strength decreased and also the use of fly ash was very effective in improving the impermeability of the concrete and the bond between the reinforcing steel and concrete. (Abstract shortened by UMI.)... |
