The positive effect of fibers on the bond of reinforcing bars in concrete is widely recognized and supported in literature. The present research analyze the results of pull-out tests carried out on both unreinforced and recycled steel fibers reinforced concrete (RSFRC). The recycled steel fibers were derived, through a mechanical procedure, from the disposal of scrap tires. The tests were performed varying the ratio between the concrete cover and the bar diameter in order to evaluate the effect of the fibers on bond behavior when the splitting failure occurs. The experimental results, in terms of mechanism of failure, maximum bond stress and bond stress versus slip behavior are analyzed and discussed
Experimental Bond Analysis of FRC Element Reinforced with steel bars
CENTONZE, GIUSEPPE;LEONE, Marianovella;AIELLO, Maria Antonietta
2012-01-01
Abstract
The positive effect of fibers on the bond of reinforcing bars in concrete is widely recognized and supported in literature. The present research analyze the results of pull-out tests carried out on both unreinforced and recycled steel fibers reinforced concrete (RSFRC). The recycled steel fibers were derived, through a mechanical procedure, from the disposal of scrap tires. The tests were performed varying the ratio between the concrete cover and the bar diameter in order to evaluate the effect of the fibers on bond behavior when the splitting failure occurs. The experimental results, in terms of mechanism of failure, maximum bond stress and bond stress versus slip behavior are analyzed and discussedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
