Effect of fly ash replacement level on the bond strength of reinforcing steel in concrete beams
Journal of Cleaner Production(2015)
Abstract
This study compares the bond strength of reinforcing steel in high-volume fly ash concrete (HVFAC) mixes. Three mixes with 0% (conventional concrete), 50%, and 70% replacement of Portland cement with a Class C fly ash investigated in this study. Three beams (simply supported four-point loading condition) as well as three pull-out specimens (based on RILEM recommendations) were tested for each mix. Test results evaluated based on different codes as well as a bond database of conventional concrete specimens. These comparisons indicate that with increasing replacement level of fly ash in concrete the bond strength of reinforcing steel in concrete increases.
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Key words
High-volume fly ash concrete,Conventional concrete,Bond strength,Experimental study
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