SikaGrout 500 Aqua is a ready-to-use, high-performance cementitious grout engineered specifically for underwater and tidal zone applications where conventional grouts fail. This nonshrink, nonmetallic formulation exhibits positive expansion properties that effectively displace water during installation, reducing washout risk and ensuring reliable placement in challenging marine environments. With superior impact, vibration, and thermal resistance, it provides structural integrity for bridge columns, wharf piles, concrete piling, and offshore installations where maximum bearing area is essential for optimal load transfer.
Reaching 4,000 psi compressive strength in just 24 hours and 9,000 psi at 28 days, this specialized grout offers rapid strength development that minimizes project delays. Its pumpable consistency and excellent flow characteristics make it ideal for tremie placement and confined cavity filling, while its resistance to washout ensures placement integrity even in active water conditions. Meeting ASTM C1107 and CRD-C 621 specifications, SikaGrout 500 Aqua delivers proven performance for critical underwater structural applications requiring long-term durability and reliability.
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Key Features of SikaGrout 500 Aqua
Washout Resistance
Specially formulated to minimize washout when placed underwater, maintaining grout integrity during installation.
Positive Expansion
Exhibits controlled expansion properties that compensate for shrinkage and ensure complete cavity filling.
Rapid Strength Development
Achieves 4,000 psi in 24 hours, 8,000 psi in 7 days, and 9,000 psi at 28 days for quick project turnaround.
Water Displacement
Effectively displaces water when installed by tremie method or proper pumping techniques.
Impact and Vibration Resistance
Provides excellent resistance to dynamic loads, mechanical impact, and thermal cycling.
Nonmetallic Composition
Noncorrosive to steel and iron reinforcement, ensuring long-term structural compatibility.
Recommended Applications for SikaGrout 500 Aqua
SikaGrout 500 Aqua is engineered for experienced professionals working on critical underwater infrastructure projects where conventional repair methods are inadequate. Its specialized formulation and placement characteristics make it particularly suitable for marine construction, coastal structures, and installations within tidal zones where water exposure is constant or intermittent.
Ideal Applications Include:
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- Bridge columns and pier foundations
- Wharf piles and marine structures
- Concrete piling and underwater anchoring
- Offshore rigging and platform supports
- Dam repairs and waterfront construction
- Slipway and marine facility restoration
- Filling confined cavities and voids below waterline
- Tidal zone structural repairs
Technical Specifications – SikaGrout-500 Aqua
High performance, nonshrink, cementitious grout specially designed for underwater applications.
9,000 PSI Compressive Strength
Underwater Applications
ASTM C1107 & CRD-C 621 Certified
~30 min Working Time
ASTM C1107 & CRD-C 621 Certified
Reduces Wash-Out Risk
Nonshrink & Nonmetallic
Effectively Displaces Water
Frequently Asked Questions
What is the recommended layer thickness for SikaGrout 500 Aqua?
The grout can be applied in layers from 1/2 inch (13 mm) minimum to 6 inches (152 mm) maximum. For applications exceeding 6 inches, consult Sika Technical Services.
How much water should be used for mixing?
Use 8-1/2 to 9 pints (4.0 to 4.3 liters) of clean, potable water per 50 lb bag. Do not over-water as this will compromise performance.
What is the working time after mixing?
Pot life is approximately 30 minutes at standard conditions. Plan placement accordingly to ensure complete installation within this timeframe.
Can it be used in direct contact with steel reinforcement?
Yes, SikaGrout 500 Aqua is nonmetallic and noncorrosive to steel and iron. However, avoid contact with aluminum to prevent adverse chemical reactions.
What temperature range is suitable for application?
Apply when ambient air and substrate temperatures are between 40°F (4°C) and 95°F (35°C). Material should be conditioned to 65-75°F (18-24°C) before use.
How should the grout be placed underwater?
Use tremie method or pumping equipment, keeping the discharge end within the grout during placement. Raise the tremie gradually but never above the grout level to prevent contamination.
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