TY - RPRT A1 - Strübbe, Nicole A1 - Muscat, Dirk A1 - Sigrüner, Michael T1 - FHprofUnt 2016: Entwicklung maßgeschneiderter Polymerfasern zur Verbesserung der Lebensdauer und der mechanischen Eigenschaften von Beton (Conplasite) : Erfolgskontrollbericht FHprofUnt 2016: Projekt Conplasite : Berichtszeitraum: 01.08.2018-31.07.2021 Y1 - 2022 U6 - https://doi.org/10.2314/KXP:185433476X ER - TY - JOUR A1 - Sigrüner, Michael A1 - Hüsken, Götz A1 - Pirskawetz, Stephan A1 - Herz, Jonas A1 - Muscat, Dirk A1 - Strübbe, Nicole T1 - Pull-out behavior of polymer fibers in concrete JF - Journal of Polymer Science N2 - The bond between polymer fibers and the surrounding cementitious matrix is essential for the development of concrete reinforcement. The single fiber pull-out test (SFPT) is the standard characterization technique for testing the bond strength. However, the different phases of debonding cannot be distinguished by the SFPT. This study investigates the debonding of different polymer fibers from the surrounding cementitious matrix with a modified SFPT and proposes methods to change the SFPT setup to generate more valuable information on the debonding mechanism. The SFPT was equipped with linear variable differential transformers (LVDT), digital image correlation (DIC) and acoustic emission (AE) analysis. The results demonstrate that the modified SFPT allows a better understanding of the different phases of debonding during fiber pull-out. Furthermore, bond strength values calculated by different methods reveal that the chemical bond of the investigated polymers is not different as reported by previous studies. Deformation measurements performed using LVDTs and DIC are suitable measuring techniques to characterize the debonding mechanism in SFPT. A correlation between recorded AE and debonding phases was not found. KW - acoustic emission KW - bond behavior KW - polymer fibers KW - pull-out Y1 - 2023 U6 - https://doi.org/10.1002/pol.20230264 VL - 61 IS - 21 SP - 2708 EP - 2720 ER - TY - CHAP A1 - Schusser, Verena A1 - Sigrüner, Michael A1 - Bogner, Stefan A1 - Muscat, Dirk A1 - Strübbe, Nicole T1 - Effect of Fillers on the Mechanical Properties of Drawn Polypropylene Fibers T2 - International Conference on Composite Materials Belfast 2023 (ICCM 23), 30 July - 4 August 2023 KW - Filler Reinforcement KW - Filament KW - Fiber Draw Down Y1 - 2023 ER -