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Five Star Structural Concrete S300 50lb Bag
Five Star Structural Concrete S300 is a normal setting, one component, enhanced hydraulic cement mortar used for pourable and pumpable repairs of concrete structures. Provides increased corrosion protection of steel reinforced structures with migrating corrosion inhibitor technology and very low chloride ion permeability.
- 60 Minute Working Time
- Large Volume Repairs
- One-Day Turnaround
$100.84
Five Star Structural Concrete S300
Five Star Structural Concrete S300 is a normal-setting, one-component enhanced hydraulic cement mortar for pourable and pumpable structural repairs. A 60-minute working time and coarse-aggregate extension support large-volume work, floors, and foundation upgrades without a rapid-set clock. Migrating corrosion inhibitors and very low chloride permeability protect reinforcing steel while one-day strength gets the structure back in service.
Key Features
- 60-minute working time for large-volume placements
- Pourable and pumpable, including ready-mix truck batching
- One-day turnaround compressive strength
- Coarse aggregate extension up to 80%
- Migrating corrosion inhibitor technology
- Very low chloride ion permeability
Applications
- Repair of concrete structures
- Industrial floors, slabs, and overlays
- Equipment foundations
- Tanks, sumps, and curbs
- Ready-mix concrete truck batching
- Structural fortifications
Technical Specifications
| Property | Value |
|---|---|
| Type | Normal-setting enhanced hydraulic cement mortar |
| Working time at 70°F (21°C) | 60 minutes |
| Time of set (initial / final) | Approx. 5 hr / 6 hr |
| Compressive strength (1 / 3 / 28 day) | 3,000 / 5,000 / 8,000 psi |
| Bond strength at 7 days | 2,300 psi |
| Chloride permeability at 28 days | Very low (<1,000 coulombs) |
| Minimum repair depth | 1 in |
| Mixing water | 2.25-3 qt per 50 lb unit |
| Yield | Approx. 0.40 ft³ neat per 50 lb bag |
| Length change at 28 days (wet / dry) | +0.03% / -0.05% |
Product documents: Structural Concrete S300 Technical Data Sheet
Frequently Asked Questions
When should a contractor pick Five Star Structural Concrete S300 instead of Five Star Structural Concrete?
Pick Five Star Structural Concrete S300 for large-volume pourable or pumpable repairs that need about 60 minutes of working time and a one-day turnaround. Standard Five Star Structural Concrete is the 15-minute high-early mix with about 2,500 psi at three hours.
Is Five Star Structural Concrete S300 pumpable?
Yes. Five Star Structural Concrete S300 is a pourable and pumpable hydraulic cement mortar for large-volume repairs and foundation upgrades.
How strong is Five Star Structural Concrete S300 at one day?
Five Star Structural Concrete S300 typically reaches about 3,000 psi at one day at 70 F.
Can Five Star Structural Concrete S300 be batched in a ready-mix truck?
Yes. Five Star Structural Concrete S300 is used for ready-mix concrete truck batching as well as industrial floors, slabs, and overlays.
Does Five Star Structural Concrete S300 protect reinforcing steel?
Yes. Five Star Structural Concrete S300 uses migrating corrosion inhibitor technology and very low chloride-ion permeability.
How long is the set of Five Star Structural Concrete S300?
Five Star Structural Concrete S300 typically reaches initial set in about 5 hours and final set in about 6 hours at 70 F.
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