Title: Curing Concrete
1Curing Concrete
2Curing
Curing requires adequate
- Moisture
- Temperature
- Time
If any of these factors are neglected, the
desiredproperties will not develop
3Effect of Adequate Curing on Hardened Concrete
- Increased
- Strength
- Watertightness
- Abrasion resistance
- Freeze-thaw resistance
- Volume stability
4Effect of Moist Curing
5Effect of Curing Temperature on Strength
6Effect of Curing Temperature on Strength
7Curing Methods
- 1. Supply additional water with
- Ponding or immersion
- Spraying or fogging
- Saturated wet coverings
8Curing of Concrete by Supplying Water
Evaporation from water surface
Water supplied from external source
Saturated
Concrete
9Curing Methods
- 2. Seal in mixing water
- Plastic sheets
- Membrane-forming curing compounds
10Membrane Curing of Concrete
Evaporation from water surface
Curing membrane
Partially saturated
Saturated
Concrete
11Curing Methods
- 3. Strength gain is accelerated with
- Live steam
- Heating coils
- Electrically heated forms or pads
12Steam Curing
13Strength vs. Steam Curing
14Strength vs. Curing Temperature
15Sealing Compounds