Research Article
Preparation, Performance Test, and Microstructure of Composite Modified Reinforced Concrete
Table 1
Physical properties of polypropylene fiber.
| Aspect ratio | Length (mm) | Diameter | Density | Elastic modulus (GPa) | Tensile strength | Water absorption |
| 237 | 9 | 38 μm | 0.91 g/cm3 | 4.5 | ≥458 MPa | <0.1% |
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