Quick-Setting Cement (No. 1240)
20 lb · US · not yet reviewed
Short answer
Set / hardened: 15–30 minutes after application.
Curing period complete: 2 days after application.
Used for structural applications: elapsed time alone can’t confirm it’s ready. Inspect or test before loading.
Start the clock
Your countdown
Stated times
- Working time ends10 minutes
- Set / hardened15–30 minutes
- Curing period complete2 days
From QUIKRETE data sheet · checked 2026-10-24. Anything not listed isn’t stated by the manufacturer.
Conditions & fine print
- Stated conditions: Not stated in the data sheet
- Mix only what you can use in about 10 minutes. Use cool water in hot weather. Near 40°F or below, protect from freezing. No traffic or load time is published, so this site shows none.
- Region US. Formulas can differ between countries; check your container.
- Set / hardened: ASTM C191
- Curing period complete: Keep damp
- Entered from the manufacturer source; second review pending. Report outdated information
- Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.
Questions
How long before Quick-Setting Cement (No. 1240) is set / hardened?
QUIKRETE states: Final set: 15 to 30 minutes (initial set about 10 minutes). Conditions: ASTM C191. This is the manufacturer’s stated time, not a guarantee.
How long before Quick-Setting Cement (No. 1240) is curing period complete?
QUIKRETE states: Efficient damp curing is required for at least 48 hours. Conditions: Keep damp. This is the manufacturer’s stated time, not a guarantee.