Duct Grouting Material is a pre-mixed, cement-based, non-shrink grout specially formulated for grouting post-tensioning tendons in bridges, viaducts, buildings, and other precast concrete structures. Its exceptional fluidity, anti-bleeding properties, and corrosion-inhibiting characteristics ensure complete void-free filling of ducts, providing durable protection to the prestressing steel and ensuring effective stress transfer.
| Property | Typical Value |
| Fluidity (Flow Cone)/sec | 18 – 25 |
| Compressive Strength, 7d/MPa | ≥ 35 |
| Compressive Strength, 28d/MPa | ≥ 50 |
| Flexural Strength, 28d/MPa | ≥ 7 |
| Bleeding Rate, 3h/% | ≤ 0.5 |
| Chloride Ion Content/% | < 0.05 |
| 28d Free Expansion Rate/% | 0.02 – 0.1 |
pplication
Grouting of prestressing tendon ducts in bridges, viaducts, and industrial floors.
Post-tensioning applications in precast concrete segments and building slabs.
Grouting of anchorages and couplersin post-tensioning systems.
Repair and grouting of honeycombs and voidsin prestressed concrete members.
