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Non-shrink grout material additive in cement with high durability
Non-shrink grout material additive in cement with high durability is made up by high strength
cementitious material, expansive agent and flow agent.Each technical index of its performance indexes achieve the "no shrinkage and high strength grouting material" rules in"technical specification for application of concrete admixtures " GBJ50119.
technical performance:
Appearance | Grey powder |
Time of setting | Initial set>2h |
Final set<10h | |
Bleeding | No |
Fluidity | >270mm |
Compression strength | 1d>20MPa |
3d>30MPa | |
28d>60MPa | |
Vertical expansivity | 3d≥0.10% |
7d≥0.20% | |
Steel bond strength | 28d>6MPa |
No shrinkage grouting material performance comparison between home and abroad
Product name | Water-material ratio(%) | Bleeding(%) | Diffusivity(cm) | Compression strength(MPa) | ||
1d | 3d | 28d | ||||
Chinese HT-GZ | 14 | 0.00 | 23.0 | 43.0 | 54.6 | 72.4 |
Japanese ENKA | 14 | 0.50 | 24.0 | 36.8 | 42.0 | 56.0 |
German | 14 | 0.00 | 25.0 | 42.1 | 61.8 | 75.2 |
Product name | Compression strength(MPa) | Vertical expansivity | ||||
3d | 7d | 28d | 3d | 7d | 28d | |
Chinese HT-GZ | 7.4 | 8.4 | 8.9 | 0.12 | 0.25 | 0.28 |
Japanese ENKA | 5.6 | 6.8 | 8.1 | 0.10 | 0.21 | 0.25 |
German | 7.5 | 8.5 | 9.1 | 0.08 | 0.15 | 0.20 |
Advantages:
1.Good fluidity.Can obtain great fluidity and completely fill any space under the lower water-cement ratio.
2.No shrinkage.Because of the micro expansion performance, can ensure the mechanical equipment foot screw bolt and base combined with foundation firmly without gap.
3.No bleeding.Do not produce bleeding, shrinking phenomenon, and avoid the disadvantages of bad binding.
4.High bonding strength.As a result of an expansion force and stable, and the anchor bolt holding force is large, and bonding with the old concrete is firm.
5.Strength early and high .
6.High durability.It is the inorganic grouting material, there is no aging, durability, no corrosion of reinforcement.
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