Abstract
In recent years premature deterioration of concrete structures due to salt damage has become a serious social problem. Repair and strengthening in order to improve the durability of these structures has become critical. Therefore ultra high performance concrete (UHPFC) properties in terms of durability and strength are fully exploited in rehabilitation and strengthening. This study was performed to evaluate the bond strength between UHPFC and Normal Concrete (NC) substrate; Slant shear tests were performed to quantify the bond strength in shear, split tests conducted to evaluate the bond strength in indirect tension. The results showed that UHPFC has excellent interlocking with the surface of NC substrate, and then gives bond strength greater than the strength of NC substrate.
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