Curing is the process of keeping cement-based works like concrete, plaster, and mortar moist for several days after application. This step is essential to ensure the structure gains full strength, remains crack-free, and lasts longer. In home construction, proper curing is often ignored, leading to surface issues, poor durability, and unnecessary repair costs.
Based On Indian Standards
These durations are as per IS 456:2000 (Clause 13.5.1), CPWD specifications, and site best practices followed across India.
Why is Curing Important?
- It allows cement to fully hydrate, developing maximum strength.
- It prevents surface cracks, shrinkage, and dusting.
- It improves the life and durability of structural and non-structural components.
Curing Time
- RCC Slabs, Beams & Columns: Minimum 7–14 days of continuous curing is needed for strength and durability.
- Brickwork: Cure for 7–10 days to avoid shrinkage cracks and improve mortar bonding.
- Wall Plastering (Internal/External): Needs 7 days to avoid flaking and ensure a smooth surface.
- Floor Screeding: Should be cured for 7 days to avoid surface powdering and wear.
- Wall Putty (Before Painting): Allow 1–2 days to set before applying paint.
- Overhead Water Tanks & Staircases: Require 10–14 days as they’re load-bearing and exposed to elements.
- Plain Cement Concrete (PCC): Needs 5–7 days for basic strength and surface stability.
Key Points to Remember
- Start curing after 10–12 hours of concrete work once initial setting is done.
- 28 days is the time to test concrete strength, not the curing period.
- Curing time varies slightly based on weather, cement type, and site conditions.
Based On Indian Standards
These durations are as per IS 456:2000 (Clause 13.5.1), CPWD specifications, and site best practices followed across India.
