High fluidity and plasticity retention provide excellent construction performance. It can fully fill any complex gap, making construction simple and convenient. Early-strength and ultra-high strength ensure continuous strength growth over time. The ultra-high-strength anchoring ensures the safety and reliability of rebar connections. The high early strength significantly shortens the load-bearing period of components and reduces construction cycles. The slurry expands slightly, resulting in no shrinkage over long-term use. The solid expansion base material effectively controls the material’s shrinkage and significantly increases its grip on the rebar. The slurry exhibits high bond strength with the rebar and sleeve, effectively transferring various stresses and ensuring a strong bond between the rebar and sleeve.
| test items | Performance indicators | ||
| QD-85 | QD-100 | ||
| fluidity/mm | initial | ≥300 | |
| 30min | ≥260 | ||
| Compressive strength/MPa | 1d | ≥35 | ≥40 |
| 3d | ≥60 | ≥70 | |
| 28d | ≥85 | ≥100 | |
| Vertical expansion rate | 3h | ≥0.02-2 | |
| 24h – 3h |
0.02-0.4 | ||
| 28d self-drying shrinkage/% | ≤0.045 | ||
| Chloride ion content/% | ≤0.03 | ||
| Water bleeding rate/% | 0 | ||
application
It is mainly used to pour into the grouting sleeve and the connection gap between components after the prefabricated components of assembled buildings are hoisted and spliced, and plays the role of anchoring the connection between the steel bars and the grouting sleeve and densely filling the connection gap between the components.
