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Quikrete FastSet Concrete Mix 70lb Bag
High-strength, rapid hardening, preblended concrete requiring only the addition of water. Designed to build or repair concrete sidewalks, driveways, highways, bridge decks, concrete parking lots and concrete floors.
- Less shrinkage than ordinary concrete
- 2 to 24 inch pour depths
- 70 pound bag
$27.15
SKU
22488
Quikrete FastSet Concrete Mix – 70 lb Bag
Quikrete FastSet Concrete Mix is a commercial-grade, rapid-hardening concrete designed for structural repairs and new construction where high early strength is required. It can be used for projects ranging from 2 to 24 inches thick, including sidewalks, bridge decks, highways, driveways, and floors. The formulation minimizes shrinkage compared to ordinary Portland cement concrete and can include an optional corrosion inhibitor for enhanced durability. FastSet Concrete Mix exceeds ASTM C928 Type R3 standards and achieves over 7,000 psi compressive strength in 28 days:contentReference[oaicite:0]{index=0}.
Key Features
- Rapid-setting concrete for structural repairs and construction.
- High early strength – reaches 3,000 psi in 3 hours and 7,000 psi in 28 days.
- Reduced shrinkage and superior bond strength.
- Usable in thicknesses from 2 to 24 inches.
- Available with optional corrosion inhibitor for reinforced concrete.
- Exceeds ASTM C928 Type R3 specifications.
- Suitable for both interior and exterior applications.
Applications
- Bridge deck and highway repairs.
- Industrial and commercial floor restoration.
- Concrete sidewalks and driveways.
- Parking lots and loading docks.
- Ramps, slabs, and precast patching.
- Repair of structural concrete members.
Technical Specifications
| Property | Value |
|---|---|
| Compressive Strength (ASTM C39) | 3 hr: 3,000 psi; 24 hr: 5,000 psi; 7 days: 6,000 psi; 28 days: 7,000 psi |
| Setting Time (ASTM C191) | Final set: 25–45 minutes |
| Slump (ASTM C143) | 3–5 inches at 5 minutes |
| Split Tensile Strength (ASTM C496) | ≥ 350 psi at 28 days |
| Slant Shear Bond Strength (ASTM C882) | 24 hr: 2,000 psi; 7 days: 2,500 psi |
| Length Change (ASTM C157) | Air: ≤ -0.07%; Water: ≥ +0.07% |
| Freeze/Thaw Resistance (ASTM C666) | ≥ 95% durability factor after 300 cycles |
| Scaling Resistance (ASTM C672) | Visual rating < 2.0 after 25 cycles |
| Tensile Strength (ASTM C1583) | ≥ 250 psi at 28 days |
| Yield | 0.52 ft³ per 70 lb bag |
| Mix Water | 6–7 pints (2.8–3.3 L) per 70 lb bag |
| Service Temperature Range | ≥ 32°F (0°C) and ≤ 100°F (38°C) |
| Compliance | ASTM C928 Type R3, ASTM C39, ASTM C143, ASTM C157 |
Frequently Asked Questions
How quickly can Quikrete FastSet be put into service?
Most repairs can be placed into service within a few hours after setting, depending on temperature and humidity.
What is the recommended mixing time?
Mix for 4–5 minutes using a concrete or mortar mixer to achieve a uniform consistency.
Can it be used in cold or hot weather?
Yes. Follow ACI 305R for hot weather and ACI 306R for cold weather concreting. Adjust water temperature accordingly.
Is special curing required?
No, but applying Quikrete Acrylic Concrete Cure and Seal (#8730) is recommended for optimum curing and protection.
What is the maximum slump allowed?
A maximum slump of 5 inches (125 mm) is recommended to maintain strength and performance.
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