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Bearing Grout
Details
Bearing grout is a material specially used for grouting reinforced concrete structural bearings. Its main function is to fill the gaps between the reinforced concrete bearings and the foundation, enhancing the stability and load-bearing capacity of the bearings.
Bearing grout features early strength, high strength, high fluidity to fill all voids, compliance with the requirements for secondary grouting, and non-shrinkage.
Test Item | Performance Index | |||
Early Strength Type I | Early Strength Type II | Standard Type | ||
Fluidity (mm) | Initial | ≥320 | ≥320 | ≥320 |
30min | ≥280 | ≥280 | ≥290 | |
Setting Time (min) | Initial Setting | ≥30 | ≥30 | ≥60 |
Final Setting |
| ≤180 | ≤720 | |
Bleeding Rate (%) | 0 | |||
Compressive Strength MPa | 2h | ≥20 |
|
|
8h |
| ≥20 |
| |
24h | ≥50 | ≥40 | ≥20 | |
3d |
|
| ≥40 | |
28d | ≥60 | ≥60 | ≥60 | |
R/Rx | ≥1.0 | |||
Execution standards: Cement-based bridge bearing grout complies with JT/T1130-2017; Railway standard complies with TB/T 2331-2020.
Keyword:
Bearing Grout
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