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| | | | | | | | | | | | Introduction | | | | With polypropylene as its raw material, this fiber is produced by special technology. The products appear net-like structure with many fiber monofilaments connected. When the fiber is put into the concrete, the horizontal structure in fiber monofilament can be destroyed in the course of stirring owing to friction and rubbing, and the fiber monofilament or net-like structure will fully stretch, thus the concrete is reinforced by a great number of polypropylene fibers.
As a new type concrete-strengthening fiber, it becomes a new popular subject in the field of fiber concrete research and application after glass fiber and steel fiber. | | | | | | | | Technical Data | | | | Density(g/cm3) | 0.91 | Elastic Modulas (MPa) | >3500 | Length(mm) | 6,10,12,15,20 | Equivalent Diameter (m) | 100 | Shape | Beam-like Net | Crack Elongation(%) | ≥10 | Acid &Alkali Resistance | Strong | Water-Absorbency | No | Tensile Strength(MPa) | 346-560 | Melting Point(C) | 160—170 |
| | | | | | | | Reinforced Functions to Concrete | | | | Compared with steel fiber, full-dispersed polypropylene fiber has advantages in its thinness, large amount, non-water absorbency, strong acid & alkali resistance and similar elastic modulus with that of concrete. The reinforced functions run as follows: | | | | | | | | - Increase seepage resistance
- Prolong endurance
- Improve steel protection
- Increase cracking resistance
- Increase fire resistance
- Strengthen spurt & fatigue
- Improve tensile, bending & folding strength
- Improve plastic deformity
- Strong acid & alkali resistance and good endurance
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