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.
Five Star Special Grout 400 is a cement-based, non-shrink fluid grout designed for critical post-tensioning applications and cable grouting. It delivers excellent corrosion protection and positive expansion properties verified under ASTM C 827. With a pumpable formulation, zero bleed, and extended working time, this grout meets ASTM C1107 Grades A, B, and C, and is compliant with PTI and CRD-C 621 standards. Its high fluidity and durability make it well suited for use in ducted tendon systems, void filling, and structural grouting where long-term stability is essential.
Property | Value |
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Compressive Strength (1 Day) | 3,500 psi |
Compressive Strength (7 Days) | 7,000 psi |
Compressive Strength (28 Days) | 8,500 psi |
Permeability (ASTM C 1202) | <1,000 coulombs |
Bleeding (4 Hours) | 0.0% |
Working Time at 90°F | Up to 2 hours |
Yield per 49 lb Bag | 0.50 ft³ |
Compliance | ASTM C1107, CRD-C 621, PTI |
What is the recommended mixing method for Special Grout 400?
Use a high-speed shear or colloidal mixer for uniform consistency. Always add water first, followed by dry material.
How much water should I add per bag?
Approximately 6 quarts of potable water per 49 lb bag. Do not exceed 6.5 quarts without consulting technical support.
Is the grout pumpable?
Yes. It is formulated for easy pumping with flow rates compatible with post-tensioning requirements.
Does Special Grout 400 provide corrosion protection?
Yes. It has been performance-tested to exceed 2,500 hours in accelerated corrosion resistance testing.
Brand | Five Star Products |
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Manufacturer | Five Star Products |