Parcel Orders over $300 Ship Free.
Five Star Special Grout 400 49 lb Bag
Five Star Special Grout 400 is a non-shrink cement grout specifically formulated for grouting of cables and tendons requiring corrosion protection. Pumpable for tight clearances and shows positive expansion.
- Extended working time
- Two hour working time at 90 degrees
- Non-shrink
$66.60
Drop Shipped
Five Star Special Grout 400, 49 lb Bag
Five Star Special Grout 400 is a cement-based, non-metallic, non-shrink fluid grout specifically formulated for the grouting of cables and tendons requiring corrosion protection. It meets Post-Tensioning Institute (PTI) specifications for post-tensioned structures as well as ASTM C1107 Grades A, B, and C and CRD-C 621 requirements. The product is highly pumpable, non-bleeding, and provides permanent void filling with an extended working time of up to 2 hours at 90°F, making it ideal for pressure placement into tendon ducts and bridge cable applications.
Key Features
- Formulated for corrosion protection of cables and tendons.
- Meets Post-Tensioning Institute (PTI) specifications.
- Pumpable fluid consistency for very tight clearances.
- Non-bleeding (0.0% at 4 hours per ASTM C940).
- Extended working time — pumpable up to 2 hours at 90°F.
- Non-shrink from the time of placement.
- Does not contain aluminum powder or gas-generating additives.
- Air Release technology per ACI 351.1R.
Applications
- Grouting of post-tensioning cables and tendons.
- Corrosion protection of bridge cables.
- Pressure placement into tendon ducts.
- Non-shrink grouting between precast panels, walls, and beams.
- Applications requiring permanent void filling and long working time.
Technical Specifications
| Property | Value (at 70°F / 21°C unless noted) |
|---|---|
| Compressive Strength – 1 Day (ASTM C942) | 3,500 psi (24.1 MPa) |
| Compressive Strength – 7 Days | 7,000 psi (48.3 MPa) |
| Compressive Strength – 28 Days | 8,500 psi (58.6 MPa) |
| Early Height Change (ASTM C827) | Positive Expansion |
| Hardened Height Change (ASTM C1090) | 0.0 to 0.2% |
| Bleeding (ASTM C940, 4 Hours) | 0.0% |
| Schupack Pressure Bleed Test (PTI) | 0 mL (Horizontal 50 psi / Vertical 100 psi for 5 min) |
| Flow (ASTM C939 modified to PTI requirements) | 9 – 20 seconds |
| Working Time at 90°F (32°C) | Up to 2 hours |
| Permeability (ASTM C1202, 28 Days) | Very low (<1,000 coulombs) |
| Accelerated Corrosion Test (PTI) | Better than Standard / >2,500 hours |
| Standards Compliance | ASTM C1107 Grades A, B & C; CRD-C 621; Post-Tensioning Institute (PTI) |
| Water Demand | 6.0 – 6.5 quarts per 49 lb bag |
| Yield | Approximately 0.50 ft³ per 49 lb bag |
| Unit Size | 49 lb (22.2 kg) bag |
Product documents: Five Star Special Grout 400 Technical Data Sheet (PDF)
Frequently Asked Questions
What is Special Grout 400 primarily designed for?
Grouting of cables and tendons requiring corrosion protection, including post-tensioned structures and bridge cables.
Does it meet Post-Tensioning Institute specifications?
Yes. It meets PTI specifications for grouting of post-tensioned structures.
What is the compressive strength at 28 days?
Approximately 8,500 psi (58.6 MPa).
How long is the working time?
Up to 2 hours at 90°F (32°C), allowing extended pumpability for complex tendon grouting operations.
Is the product non-bleeding?
Yes. It shows 0.0% bleeding at 4 hours (ASTM C940) and passes the Schupack Pressure Bleed Test with 0 mL result.
What flow consistency is recommended?
Mix to a flow of 9–20 seconds through a flow cone per ASTM C939 modified to PTI requirements.
Please complete your information below to login.