Numerical prediction for bond stress-slip relationship between deformed steel rebar and recycled coarse aggregate concrete

Sun-Woo Kim, Wan-Shin Park, Young-Il Jang, Hyun-Do Yun
2015 Contemporary Engineerng Sciences  
To assess the bond behavior of deformed steel bars in recycled aggregate concretes (RACs), pullout test curves were compared with the curves predicted using the equation proposed by Haraji and Guo. The test curves are well predicted by the numerical manner, which demonstrates that the overall bond stress-slip relationship of deformed steel rebar in RAC could be expressed numerically. For each recycled aggregate replacement level, the value of parameter a for the ascending branch is 486 Sun-Woo
more » ... nch is 486 Sun-Woo Kim et al. found to lie in a narrow range and does not indicate any particular tendency. However, from the b-values of steel rebar at upper part of concrete, it can be inferred that the RAC could exhibit lower energy absorption capacity than conventional concrete.
doi:10.12988/ces.2015.53116 fatcat:5pa4enkcnjgj3kson3ooil3gtm