Curing Concrete

Curing Concrete

Curing

Moisture Temperature Time

Curing requires adequate —

If any of these factors are neglected, the desiredproperties will not develop

Curing Concrete

Increased Strength Watertightness Abrasion resistance Freeze-thaw resistance Volume stability

Effect of Adequate Curing on Hardened Concrete

Curing Concrete

Effect of Moist Curing

Curing Concrete

Effect of Curing Temperature on Strength

Curing Concrete

Effect of Curing Temperature on Strength

Curing Concrete

Curing Methods1. Supply additional water

with: Ponding or immersion

Spraying or fogging

Saturated wet coverings

Curing Concrete

Curing of Concrete by Supplying Water

Evaporation from water surface

Concrete

Water supplied from external source

Saturated

Curing Concrete

Curing Methods2. Seal in mixing water:

Plastic sheets

Membrane-forming curing compounds

Curing Concrete

Membrane Curing of Concrete

Evaporation from water surface

Concrete

Curing membrane

Saturated

Partially saturated

Curing Concrete

Curing Methods

3. Strength gain is accelerated with: Live steam Heating coils Electrically heated forms

or pads

Curing Concrete

Steam Curing

Curing Concrete

Strength vs. Steam Curing

Curing Concrete

Strength vs. Curing Temperature

Curing Concrete

Sealing Compounds