Each package of grouting material weighs 25 kg and is packaged in a composite paper bag lined with a plastic bag.
Testing Items | Level I Qualified Appraisal Indicators | ||
Slurry Performance | Tensile splitting strength (MPa) | ≥7 | |
Flexural strength (MPa) | ≥12 | ||
Compressive strength (MPa) | 7d | ≥40 | |
28d | ≥55 | ||
Adhesive Capability | Shear bond strength with wire rope (MPa) | Standard value | ≥9 |
Tensile bond strength with concrete (MPa) | ≥2.5, and cohesive failure within the concrete |