Polyvinyl Alcohol (PVA) Fiber for Crack-Resistant Mortar
CAS Number: 9002-89-5
Polyvinyl alcohol (PVA) fiber is a hydrophilic synthetic fiber used in cement composites to improve tensile strength, flexural toughness, and crack resistance. Due to its high tensile modulus and strong chemical bond with the cement matrix, PVA fibers are especially effective in engineered cementitious composites (ECC) and fiber-reinforced concrete overlays. PVA fibers can be manufactured in micro to macro lengths for different applications.
Technical Specifications
| appearance | White fibrous material |
| fiber length (mm) | 6–18 (customizable) |
| elastic modulus (GPa) | ≥28 |
| tensile strength (MPa) | ≥1200 |
| elongation at break (%) | 6–10 |
Applications
- Engineered cementitious composite (ECC) materials
- Thin-shell concrete structures and overlays
- Crack-resistant floor toppings and repair mortars
- Precast concrete facade panels
- Fiber cement boards and flat sheets
Key Features
- High tensile modulus and strength for effective crack bridging
- Hydrophilic surface ensures excellent bond with cement matrix
- Enables multiple micro-crack formation for ductile failure mode
- Alkali-resistant, suitable for long-term use in cementitious environments
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