<scp>Pull‐out</scp> behavior of polymer fibers in concrete

Abstract The bond between polymer fibers and the surrounding cementitious matrix is essential for development of concrete reinforcement. single fiber pull‐out test (SFPT) standard characterization technique testing strength. However, different phases debonding cannot be distinguished by SFPT. This study investigates from with a modified SFPT proposes methods to change setup generate more valuable information on mechanism. was equipped linear variable differential transformers (LVDT), digital image correlation (DIC) acoustic emission (AE) analysis. results demonstrate that allows better understanding during pull‐out. Furthermore, strength values calculated reveal chemical investigated polymers not as reported previous studies. Deformation measurements performed using LVDTs DIC are suitable measuring techniques characterize mechanism in A recorded AE found.