Effects of Polyvinyl Alcohol Fiber on Bond Behavior between Concrete and Steel Rebar
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Bibliografische Angaben
| Autor(en): |
Xuhui Zhang
(Xiangtan University, Xiangtan, Hunan, China)
Qi Lu (Xiangtan University, Xiangtan, Hunan, China) |
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| Medium: | Tagungsbeitrag | ||||
| Sprache(n): | Englisch | ||||
| Tagung: | IABSE Congress: Engineering for Sustainable Development, New Delhi, India, 20-22 September 2023 | ||||
| Veröffentlicht in: | IABSE Congress New Delhi 2023 | ||||
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| Seite(n): | 1348-1356 | ||||
| Anzahl der Seiten (im PDF): | 9 | ||||
| DOI: | 10.2749/newdelhi.2023.1348 | ||||
| Abstrakt: |
The effects of Polyvinyl alcohol (PVA) fibers on the bonding behavior between reinforcement and concrete is studied by experiments. The effects of PVA fibers, rebar diameter and cover depth on bond behavior are clarified. Results show that PVA fibers affect negatively on bonding in ascending branches both for the pull-out and splitting cases, but improve the bonding in descending branches after peak stress for splitting case. In the present test, the maximum decrement of bond strength is about 16.2% with PVA fiber less than 0.6%. PVA fibers restricts both the macro-cracking and micro-cracking for splitting case, the former one seems much more significant than later one. The effects of rebar diameter and cover depth on bonding become slight and significant with increment content of PVA fibers, respectively. |
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