Abstract
This study reports on the use of polyvinyl alcohol-based needle punched nonwoven fabrics in cement-based composites as a low-cost reinforcement. In this study, a nonwoven reinforcement using crimped polyvinyl alcohol fibers for cement-based composites was developed. The incorporation of nonwoven fabric in composites improved tensile and flexural properties compared to a discrete polyvinyl alcohol fiber-reinforced composite. Formation of multiple fine cracks, crimped fibers and mechanical interlocking of fibers in the nonwoven fabric structure resulted in superior mechanical performance. The failure mode was due to a single macro-crack for the discrete fiber reinforced composite as opposed to a number of fine cracks for the nonwoven reinforced composite.
| Original language | English |
|---|---|
| Pages (from-to) | 3129-3140 |
| Number of pages | 12 |
| Journal | Journal of Composite Materials |
| Volume | 48 |
| Issue number | 25 |
| DOIs | |
| Publication status | Published - 1 Oct 2014 |
Bibliographical note
Publisher Copyright:© The Author(s) 2013 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.
Funding
This work was supported by the Istanbul Technical University Scientific Research Projects Fund under Grant No. BAP 34314.
| Funders | Funder number |
|---|---|
| Istanbul Technical University Scientific Research Projects Fund | BAP 34314 |
Keywords
- Needle punched nonwoven
- cementitious composite
- flexural behavior
- polyvinyl alcohol fiber
- reinforcement
- specific fracture energy
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