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Polymer mortar for concrete structure reinforcement (high-strength repair mortar) is mainly composed of high-strength cement, high-molecular polymer, composite expansion agent, polypropylene fiber, micro-powder admixture, etc.
Used for repairing surface defects of concrete structures such as erosion, spalling, exposed rebars, honeycombs, and leaks through plastering. It provides protection against scouring, air erosion, freezing/thawing, and carbonation. Ideal for highways, bridges, airport runways, and reinforcement with steel wire mesh or carbon fiber grids.
| Performance Category | Inspection Item | Condition | Index (Class I) |
|---|---|---|---|
| Mortar Performance | Flexural tensile strength (MPa) | - | ≥ 7 |
| - | Flexural strength (MPa) | - | ≥ 12 |
| - | Compressive strength (MPa) | 7d | ≥ 40 |
| - | Compressive strength (MPa) | 28d | ≥ 55 |
| Bonding Capacity | Tensile shear strength with steel wire (MPa) | Standard value | ≥ 9 |
| - | Tensile bonding strength with concrete (MPa) | - | Qualified |
Each bag of grouting material has a mass of 25Kg and is packaged in composite paper bags lined with plastic bags to ensure moisture resistance and durability during transport.
