Five Star Structural Concrete 50lb Bag 29100

Five Star Structural Concrete is a high early strength, single component, permanent concrete repair material. Five Star Structural Concrete produces a repair which is dimensionally stable, develops an integral bond to existing concrete, and restores structural integrity within hours of placement.

High three-hour strengths
High bond strength
Excellent freeze/thaw resistance

$65.88

Availability: In stock

Details

Five Star Structural Concrete

Five Star Structural Concrete is a high-early-strength, single-component repair mortar for permanent structural patches. Migrating corrosion inhibitors and very low chloride permeability protect embedded steel while the mix bonds to existing concrete and restores integrity within hours. Place neat from 1/2 inch to 2 inches, or extend with aggregate for thicker pours, then coat as early as 4 hours. Also available as the 50 lb pail.

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50 lbpail

Key Features

High three-hour compressive strength for fast turnaround
Single-component mix for consistent field batches
Migrating corrosion inhibitor technology
Very low chloride ion permeability
Excellent freeze/thaw resistance
Coat with cement or epoxy grouts as early as 4 hours

Applications

Repair of concrete structures
Rapid machinery foundation rebuilds
Concrete floor repairs and overlays
Construction joint repair
Marine and hydraulic structure repairs
Tanks, sumps, and curbs

Technical Specifications

Property	Value
Type	Single-component high-early-strength repair mortar
Working time at 70°F (21°C)	15 minutes
Placement depth	1/2-2 in neat; thicker with aggregate extension
Compressive strength (3 hr / 1 day / 28 day)	2,500 / 5,000 / 8,000 psi
Bond strength (1 day / 7 day)	2,000 / 2,500 psi
Chloride permeability at 28 days	Very low (<1,000 coulombs)
Freeze/thaw resistance	95% relative durability modulus
Maximum in-service temperature	400°F (204°C)
Mixing water	2.5-3 qt per 50 lb unit
Yield	Approx. 0.42 ft³ neat per 50 lb unit

Product documents: Structural Concrete Technical Data Sheet

Frequently Asked Questions

How strong is Five Star Structural Concrete at three hours?
Five Star Structural Concrete typically reaches about 2,500 psi at three hours at 70 F, so repairs can return to service the same shift.

When can coatings go over Five Star Structural Concrete?
Cement grouts, epoxy grouts, and epoxy coatings can go over Five Star Structural Concrete as early as 4 hours after placement, depending on site conditions.

How thick can Five Star Structural Concrete be placed in one pour?
Place Five Star Structural Concrete neat up to 2 inches, or extend it with aggregate for placements up to 12 inches in a single pour.

Does Five Star Structural Concrete include migrating corrosion inhibitors?
Yes. Five Star Structural Concrete uses migrating corrosion inhibitor technology and very low chloride-ion permeability to protect steel-reinforced repairs.

Is Five Star Structural Concrete used for rapid machinery foundation rebuilds?
Yes. Five Star Structural Concrete is used for rapid machinery foundation rebuilds, floor repairs, construction joints, and marine or hydraulic structure work.

Does Five Star Structural Concrete hold up in freeze-thaw service?
Yes. Five Star Structural Concrete has a typical ASTM C666A relative durability modulus of 95 percent.

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