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Five Star Structural Concrete Underwater PG 50lb Bag
Five Star Structural Concrete Underwater PG (pump grade) is a high early strength, single component, permanent concrete repair material designed for pumping underwater. This concrete repair material features excellent pumping properties and minimal washout during large volume placements underwater and is designed for placement in tidal zones and underwater.
- Large Volume Placements
- Saltwater Resistant
- High 6 Hour Strength
$90.76
Five Star Structural Concrete Underwater PG
Five Star Structural Concrete Underwater PG is a high-early-strength, single-component pump-grade mortar for large-volume underwater repairs. Excellent pumping, minimal washout, and saltwater resistance keep placements cohesive in tidal zones, tanks, dams, and marine cavities. High six-hour strength, adjustable working time, and migrating corrosion inhibitors restore submerged reinforced concrete.
Key Features
- Pump-grade mix for large-volume underwater placements
- Minimal washout during pumping
- High six-hour compressive strength
- Saltwater, chloride, and sulfate resistant
- Migrating corrosion inhibitor technology
- Coarse aggregate extension up to 80%
Applications
- Large-volume underwater concrete repairs
- Tanks, dams, marine, and hydraulic structures
- Filling underwater cavities and voids
- Tidal-zone pumped placements
Technical Specifications
| Property | Value |
|---|---|
| Type | Single-component pump-grade underwater repair mortar |
| Working time at 70°F (21°C) | 20 minutes |
| Compressive strength (6 hr / 1 day / 28 day) | 2,500 / 5,000 / 7,500 psi |
| Underwater bond (1 day / 7 day) | 1,000 / 1,500 psi |
| Chloride permeability at 28 days | Negligible (<100 coulombs) |
| Length change at 28 days wet | +0.02% |
| Packaging | 50 lb bag |
| Yield | Approx. 0.42 ft³ per 50 lb bag |
| Aggregate extension | Up to 80% with 3/8 in coarse aggregate |
| Minimum repair depth | 1 in |
Product documents: Structural Concrete Underwater PG Technical Data Sheet
Frequently Asked Questions
When should a contractor pick Five Star Structural Concrete Underwater PG instead of Underwater Hand Pack?
Pick Five Star Structural Concrete Underwater PG for large-volume underwater repairs that will be pumped. Use Five Star Structural Concrete Underwater Hand Pack for small-volume hand or trowel placements.
Does Five Star Structural Concrete Underwater PG wash out during placement?
Five Star Structural Concrete Underwater PG is designed for minimal washout during large-volume placements underwater and in tidal zones.
How strong is Five Star Structural Concrete Underwater PG at six hours?
Five Star Structural Concrete Underwater PG typically reaches about 2,500 psi at six hours at 70 F.
Is Five Star Structural Concrete Underwater PG pumpable underwater?
Yes. Five Star Structural Concrete Underwater PG is a pump-grade underwater repair for large-volume placements.
Does Five Star Structural Concrete Underwater PG have very low chloride-ion permeability?
Yes. Five Star Structural Concrete Underwater PG is typically negligible at 28 days (under 100 coulombs).
Is Five Star Structural Concrete Underwater PG used on tanks, dams, and marine structures?
Yes. Five Star Structural Concrete Underwater PG is used for tanks, dams, marine and hydraulic structure repairs, and filling underwater cavities and voids.
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