Abstract
Reliable design and application of textile-reinforced mortar (TRM) composites for the repair of existing masonry and concrete structures requires a fundamental understanding of the textile-to-mortar bond behavior as one of the main mechanisms controlling their nonlinear response and cracking behavior. Suitable test setups and analytical models are needed to extract the bond-slip laws from the experimental pull-out tests. This paper proposes a new bond-slip law and analytical model, which predicts the bond behavior of lime and cement-based TRM composites considering the slip hardening and softening effects observed in experimental tests. For this purpose, the pull-out response of experimental specimens with different fiber types (steel and glass), bond lengths, and mortar age are analyzed, and their bond slip-laws are extracted. The accuracy of the developed model is shown by comparing analytical and experimental results.
| Original language | English |
|---|---|
| Article number | 122639 |
| Number of pages | 14 |
| Journal | Construction and Building Materials |
| Volume | 282 |
| Early online date | 26 Feb 2021 |
| DOIs | |
| Publication status | Published - 3 May 2021 |
Keywords
- Textile reinforced mortar
- Pull-out test
- Analytical modeling
- Fiber/matrix bond
- Bond-slip law