In general, the bond performance of reinforcement is assessed using pullout specimens. However, when ribbed bars are considered, several objections regarding the form of such tests become apparent. In view of this, a study was conducted to establish whether pullout tests in general, and the BS4449 bond test in particular, provide a valid measure of bond performance of deformed bars. It was shown that there are no strong reasons to abandon pullout methods of test, despite their being unrepresentative of practical conditions. A suitable correlation between performance in the BS4449 bond test and BS8110 design ultimate bond strengths was proposed, and the need to develop a similar correlation in respect of crack and deflection control performance was identified.
|Number of pages||7|
|Journal||The Structural Engineer|
|Publication status||Published - 6 Jun 1995|