![]() The addition of either silica fume or fly ash positively hindered further degradation as the dolomite powder content increased. The results showed that the bond strength was reduced due to Portland cement replacement with dolomite powder. The steel-concrete bond adequacy was evaluated based on normalized bond strength. The variation of the ultimate bond strength along the flowing path for the different mixes was evaluated. A push-put configuration was adopted for conducting the bond test. The beams were then broken into discrete test specimens. Seven mixes were proportioned and cast without vibration in long beams with 10 mm and 16 mm steel dowels fixed vertically along the flowing path. Either silica fume or fly ash was used along with the dolomite powder in some mixes. The investigated mixes incorporated relatively high contents of dolomite powder replacing Portland cement. The main objective of this research was to evaluate the potentials of self-compacting concrete (SCC) mixes to develop bond strength.
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