Quikrete Fast-Setting Concrete Mix 50 lb Bag, Sets in 20 to 40 Minutes
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Quikrete Fast-Setting Concrete Mix 50 lb Bag, Sets in 20 to 40 Minutes is backordered and will ship as soon as it is back in stock.
Ships same day on weekday orders placed before the 14:00 ET cut-off.
Typically 1 to 5 business days by UPS, FedEx Ground or USPS. Enter your ZIP for your dates.
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- Brand
- Quikrete
- Type
- Concrete Repair
About this item
- Final set in 20 to 40 minutes tested to ASTM C191.
- 1000 psi at 24 hours, 2500 psi at 7 days, 4000 psi at 28 days, tested to ASTM C39.
- Can be dry poured for posts. Pour the dry mix into the hole and add water, roughly one gallon per 50 lb bag depending on soil.
- Or mixed conventionally, about 4 pints of water per 50 lb bag, up to a maximum below 5 pints.
- Meets or exceeds ASTM C387 compressive strength requirements.
Shipping, pick-up and returns
Shipping, pick-up and returns
Orders ship from Williamstown, New Jersey by UPS, FedEx Ground or USPS; weekday orders placed before 2 PM Eastern go out the same day. Warehouse pick-ups (call first so we can pull your order) and drop-off returns Monday to Friday 8 to 5, Saturday 8 to noon.
Quikrete Fast-Setting Concrete Mix 50 lb Bag, Sets in 20 to 40 Minutes is backordered and will ship as soon as it is back in stock.
How many bags do I need?
Coverage per bag comes from the manufacturer's data sheet for this exact sand.
Ships same dayWeekday orders before 2 PM Eastern
Real humans(856) 418-4895, any hour
Pick up in NJWilliamstown, call ahead
Manufacturer specsStraight from the data sheet
Why Quikrete Fast-Setting Concrete Mix?
What It Is For
This is a general purpose concrete formulated to set fast. Quikrete rates it for setting posts, sleeves and anchors, and for pouring slabs at two inches or thicker.
Full description and specs
Set time
20 to 40 minutes, ASTM C191

Compressive strength
1000 psi at 24 hours, 2500 psi at 7 days, 4000 psi at 28 days

Yield
About 0.375 cu ft per 50 lb bag

Minimum slab thickness
2 inches
How to Use It
The short version. Always follow the Quikrete data sheet.
-

Mix only what you can place in 20 minutes
This is the one rule people break, and a wheelbarrow of set concrete is an expensive lesson.
-

For slabs, pour at 2 inches or thicker
Cut control joints 1 inch deep every 6 to 8 feet.
-

Wait 4 hours before the post takes strain, or before
-

Cure 5 days in warm weather at 70 F or above, or 7 days in
-

Protect from freezing for the first 48 hours
Use plastic sheeting or insulation blankets if it may drop below 32 F.
Description
Description
What It Is For
This is a general purpose concrete formulated to set fast. Quikrete rates it for setting posts, sleeves and anchors, and for pouring slabs at two inches or thicker. The appeal is the return to service: four hours before the post takes any strain, rather than the day you would wait with a standard mix.
- Final set in 20 to 40 minutes tested to ASTM C191.
- 1000 psi at 24 hours, 2500 psi at 7 days, 4000 psi at 28 days, tested to ASTM C39.
- Can be dry poured for posts. Pour the dry mix into the hole and add water, roughly one gallon per 50 lb bag depending on soil.
- Or mixed conventionally, about 4 pints of water per 50 lb bag, up to a maximum below 5 pints.
- Meets or exceeds ASTM C387 compressive strength requirements.
Specifications
| Product number | Quikrete No. 1004, 50 lb bag |
| Set time | 20 to 40 minutes, ASTM C191 |
| Compressive strength | 1000 psi at 24 hours, 2500 psi at 7 days, 4000 psi at 28 days |
| Yield | About 0.375 cu ft per 50 lb bag |
| Mixing water | About 4 pints per bag, maximum below 5 pints |
| Dry pour for posts | About 1 gallon of water per bag |
| Minimum slab thickness | 2 inches |
| Standards | ASTM C39, C191, C387 |
Coverage for Setting Posts
Two 50 lb bags will set a 3 inch square post in a 9 inch diameter hole 30 inches deep. Allow at least three quarters of a cubic foot of mixer capacity per 50 lb bag if you are mixing rather than dry pouring.
How to Use It
- Mix only what you can place in 20 minutes. This is the one rule people break, and a wheelbarrow of set concrete is an expensive lesson.
- For slabs, pour at 2 inches or thicker. Cut control joints 1 inch deep every 6 to 8 feet.
- Wait 4 hours before the post takes strain, or before walking on a slab or setting anything heavy on it.
- Cure 5 days in warm weather at 70 F or above, or 7 days in cooler weather.
- Protect from freezing for the first 48 hours. Use plastic sheeting or insulation blankets if it may drop below 32 F.
Things Worth Knowing
- Set times shift with the weather. Use cold or iced water in severe heat, warm water in severe cold.
- Keep de-icers off it for at least 28 days, and Quikrete notes that waiting 56 days or more is better still.
- Do not overwork the surface. It brings water and fines to the top and weakens the finish.
- Wear gloves and eye protection. Wet cement causes severe burns, and the dust is a respiratory hazard.
Data sheets
Data sheets
The manufacturer's technical data sheet (coverage, joint width, cure and rain-safe times) and safety data sheet are collected in the TDS and SDS library. Every figure on this page comes from those sheets.
Payment & Security
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Questions about this product
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