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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
Five Star Structural Concrete ESX is a high-early-strength, single-component, pre-extended repair concrete for deep structural pours. At maximum water it reaches a self-consolidating consistency that encapsulates reinforcement without vibration. A 45-minute working time supports single-lift placements from 1/2 inch to 24 inches while high six-hour strength gets foundations back in service.
Key Features
- Pre-extended in the bag for consistent quality
- Self-consolidating at maximum water dosage
- 45-minute working time for deep single-lift pours
- Place from 1/2 inch to 24 inches without added aggregate
- High six-hour strength for foundation rebuilds
- Pumpable with migrating corrosion inhibitors
Applications
- Deep, large-volume concrete structure repairs
- Machinery foundation rebuilds
- Full-depth floor repairs up to 24 inches
- Concrete floor toppings and overlays
Technical Specifications
| Property | Value |
|---|---|
| Type | Single-component pre-extended SCC repair concrete |
| Working time at 70°F (21°C) | 45 minutes |
| Placement depth | 1/2 in to 24 in |
| Compressive strength, cubes (6 hr / 1 day / 28 day) | 3,000 / 5,000 / 8,000 psi |
| Compressive strength, cylinders (6 hr / 28 day) | 2,500 / 7,000 psi |
| Slant shear bond (1 day / 7 day) | 2,000 / 2,500 psi |
| Chloride permeability at 28 days | Very low (<1,000 coulombs) |
| Initial slump | 10 in nominal (8.5-11.5 in) |
| Mixing water | 1.75-2.25 qt per 50 lb bag |
| Yield | Approx. 0.38 ft³ per 50 lb bag |
Product documents: Structural Concrete ESX Technical Data Sheet
Frequently Asked Questions
When should a contractor pick Five Star Structural Concrete ESX instead of Five Star Structural Concrete ES?
Pick Five Star Structural Concrete ESX when you need a pre-extended, self-consolidating mix for lifts up to 24 inches. Five Star Structural Concrete ES is neat to 2 inches or field-extended to 12 inches.
Does Five Star Structural Concrete ESX come pre-extended from the plant?
Yes. Five Star Structural Concrete ESX is pre-extended in the bag at the plant so the coarse aggregate is already in the mix.
Does Five Star Structural Concrete ESX reach a self-consolidating consistency?
Yes. At maximum water, Five Star Structural Concrete ESX reaches a self-consolidating concrete consistency and encapsulates reinforcement without vibration.
How deep can Five Star Structural Concrete ESX be placed in one lift?
Five Star Structural Concrete ESX can be placed in a single lift up to 24 inches. Contact Five Star Products for pours deeper than 24 inches.
When can coatings go over Five Star Structural Concrete ESX?
Cement grouts, epoxy grouts, and epoxy coatings can go over Five Star Structural Concrete ESX as early as 6 hours after placement, depending on site conditions.
How strong is Five Star Structural Concrete ESX at six hours?
Five Star Structural Concrete ESX typically reaches about 3,000 psi at six hours on 2-inch cubes at 70 F.
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