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Five Star Structural Concrete ESX 50lb Bag
High early strength, single component, pre-extended, permanent concrete repair material. Achieves a self-consolidating concrete consistency at maximum water dosage, enabling easy placement, excellent flowability, and superior encapsulation of reinforcement without vibration.
- Pre-extended
- Pumpable
- Deep pours up to 24 inches
$83.33
Five Star Structural Concrete ESX 50lb Bag
Five Star Structural Concrete ESX is a high early strength, single-component, pre-extended concrete repair material for deep, large-volume structural repairs and machinery foundations. At maximum water dosage, it develops a self-consolidating consistency that provides excellent flowability and reinforcement encapsulation without vibration. Its 45-minute working time supports placements from 1/2 inch to 24 inches in a single lift while high six-hour strength helps restore structural integrity and accelerate return to service.
Key Features
- Single-component, pre-extended permanent concrete repair material.
- Self-consolidating consistency at maximum water dosage.
- Provides excellent flowability and reinforcement encapsulation without vibration.
- 45-minute working time supports deep and large-volume placements.
- Can be placed from 1/2 inch to 24 inches in a single lift.
- Develops high six-hour compressive strength for accelerated repairs.
- Contains migrating corrosion inhibitor technology for reinforced concrete protection.
- Provides very low chloride ion permeability and excellent freeze-thaw resistance.
Applications
- Deep structural concrete repairs.
- Large-volume concrete repairs.
- Machinery foundations.
- Equipment foundation rebuilds.
- Full-depth concrete floor repairs.
- Steel-reinforced concrete rehabilitation.
- Pumped or formed concrete repairs.
- Repairs requiring early application of cement grout, epoxy grout, or epoxy coatings.
Technical Specifications
| Property | Value |
|---|---|
| Product Type | Pre-extended, high early strength concrete repair material |
| Packaging | 50 lb bag |
| Product Code | 29410 |
| Yield | Approximately 0.38 cubic feet per bag at maximum water dosage |
| Mixing Water | 1-3/4 to 2-1/4 quarts of potable water per 50 lb bag |
| Placement Depth | 1/2 inch to 24 inches; contact Five Star for placements over 24 inches |
| Working Time | 45 minutes at 70 Degrees F |
| Initial Set | 60 to 80 minutes |
| Final Set | 80 to 100 minutes |
| Compressive Strength, 2 Inch Cubes | 6 hours: 3,000 psi; 1 day: 5,000 psi; 7 days: 6,500 psi; 28 days: 8,000 psi |
| Compressive Strength, 4 x 8 Inch Cylinders | 6 hours: 2,500 psi; 1 day: 4,000 psi; 7 days: 5,000 psi; 28 days: 7,000 psi |
| Slant Shear Bond Strength | 1 day: 2,000 psi; 7 days: 2,500 psi |
| Length Change at 28 Days | Maximum 0.03% shrinkage |
| Freeze-Thaw Resistance | Minimum 90% relative durability modulus after 300 cycles |
| Chloride Ion Permeability | Very low, less than 1,000 coulombs at 28 days |
| Initial Slump | 10 inches nominal, 8.5 to 11.5 inches |
| Density | 144 lb per cubic foot |
| Installation Temperature Range | 35 to 95 Degrees F ambient temperature |
| Recommended Temperature Range | 50 to 90 Degrees F for material, surfaces, equipment, and environment |
| Minimum Wet Cure | 4 hours |
| Shelf Life | 1 year in original, unopened packaging when stored in dry conditions |
FAQs
What is Five Star Structural Concrete ESX used for?
It is used for deep and large-volume structural concrete repairs, machinery foundation rebuilds, and full-depth concrete floor repairs.
Is Structural Concrete ESX self-consolidating?
Yes. At maximum water dosage, it develops a self-consolidating consistency that provides high flowability and reinforcement encapsulation without vibration.
How deep can Structural Concrete ESX be placed?
It can be placed from 1/2 inch to 24 inches in a single lift. Five Star should be contacted for placements deeper than 24 inches.
How quickly does Structural Concrete ESX gain strength?
It develops a minimum compressive strength of 3,000 psi in two-inch cubes and 2,500 psi in four-by-eight-inch cylinders after six hours at 70 Degrees F.
Can grout or epoxy coatings be applied soon after placement?
Cement grouts, epoxy grouts, and epoxy coatings may be applied as early as six hours after placement, depending on environmental conditions.
Does Structural Concrete ESX require vibration?
No. At maximum water dosage, its self-consolidating consistency is designed to flow around and encapsulate reinforcement without vibration.
How should Structural Concrete ESX be cured?
Exposed surfaces should be continuously wet cured for a minimum of four hours, beginning when the hydration process is visibly underway.
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