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Five Star Underwater High-Strength Grout 50lb Bag
Five Star Cementitious Underwater High-Strength Grout is an underwater pump grade, cement-based, non-shrink grout for pile restoration and similar applications. Exhibits positive expansion for shrink compensation.
- Salt and Seawater Resistant
- Non-Ferrous, Non-Corrosive
- Non-Shrink from Time of Placement
$36.90
SKU
14452
Five Star Underwater High Strength Grout – 50 lb Bag
Five Star® Underwater High Strength Grout is a cement-based, non-shrink grout engineered for underwater placements in pile jackets and structural repairs. It delivers high compressive strength, exhibits positive expansion under ASTM C827, and resists degradation in salt and seawater environments. Designed for tremie, pump, or pour applications, this grout ensures long-term stability for submerged structures and repair work in tidal or brackish zones.
Key Features:
- Non-shrink performance with positive expansion (ASTM C827)
- High early and ultimate compressive strength (up to 8,500 psi)
- Excellent resistance to salt, seawater, and brackish environments
- Non-ferrous and non-corrosive with built-in corrosion inhibitors
- Long working time of approximately 60 minutes at 70°F
- Pumpable, pourable, and tremie-compatible formulation
Applications:
- Pile jacket grouting and underwater restoration
- Submerged concrete repairs and reinforcements
- Anchoring dowels in wet environments
- Grouting in tidal zones and high-humidity coastal areas
- Freshwater, saltwater, or mixed exposure repairs
- Infrastructure rehabilitation below the waterline
Technical Specifications:
| Compressive Strength (ASTM C109) – 1 Day | 3,500 psi |
| Compressive Strength – 7 Days | 8,000 psi |
| Compressive Strength – 28 Days | 8,500 psi |
| Bond Strength (ASTM C882) – 28 Days | 2,000 psi |
| Modulus of Elasticity (ASTM C469) | 5,200 ksi |
| Early Height Change (ASTM C827) | Positive Expansion |
| Working Time at 70°F | 60 minutes |
| Yield per 50 lb Bag | 0.43 ft³ |
Frequently Asked Questions
Can this grout be used with pile jackets?
Yes. It is specifically designed for use in pile restoration and jacket fill applications, even in submerged conditions.
Is the product compatible with saltwater?
Yes. It is resistant to salt and seawater exposure and remains stable in marine environments.
What is the recommended placement method?
It can be placed using tremie techniques, pumped, or poured directly into formwork. For depths under 1 inch or over 6 inches, consult Five Star.
What is the shelf life?
One year in original unopened packaging stored in dry conditions.
| Brand | Five Star Products |
|---|---|
| Manufacturer | Five Star Products |
