High-strength non-shrinkage grout is a dry powder building material compounded with high-quality cement, selected aggregates and functional admixtures. It features excellent self-leveling performance, early strength, high compressive strength, micro-expansion, zero shrinkage and good anti-segregation property.
After mixing with water, it owns superior fluidity to fill gaps automatically and densely. It keeps stable volume after hardening, with firm bonding, good aging resistance, corrosion resistance and impact resistance.
Easy to construct and fast strength development ensures rapid reaching design strength, realizing dense filling, reliable anchoring and accurate leveling.
Technical indicators of sleeve grouting materials
Test items | QD-85 Sleeve grouting material | QD-100 Sleeve grouting material | |||
Normal temperature | low temperature | Normal temperature | low temperature | ||
fluidity/mm | Initial | ≥300 | ≥300 | ≥300 | ≥300 |
30 min | ≥260 | ≥260 | ≥260 | ≥260 | |
Compressive strength/MPa | 1d | ≥35 | - | ≥40 | - |
3d | ≥60 | - | ≥70 | - | |
28d | ≥85 | - | ≥100 | - | |
-1d | - | ≥35 | - | ≥40 | |
-3d | - | ≥60 | - | ≥70 | |
-7d+21d | - | ≥85 | - | ≥100 | |
Vertical expansion rate/% | 3h | 0.02~2 | |||
24h & 3h | 0.02~0.40 | ||||
28d Self-drying shrinkage/% | ≤0.045 | ||||
Chloride ions/% | ≤0.03 | ||||
Water bleeding rate/% | 0 | ||||
Special grouting for rebar sleeves in precast construction
Secondary grouting for wind power and photovoltaic foundation bases
Anchorage grouting for foundation bolts of large mechanical equipment
Filling and reinforcement for bridge bearings and box girders
Leveling grouting for factory columns and steel structure bases
Concrete hole repairing and structural reinforcement
Dense grouting for tunnels, utility tunnels and civil defense project
