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Curing Concrete

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Page 1: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Page 2: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Curing

Moisture Temperature Time

Curing requires adequate —

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

Page 3: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Increased Strength Watertightness Abrasion resistance Freeze-thaw resistance Volume stability

Effect of Adequate Curing on Hardened Concrete

Page 4: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Effect of Moist Curing

Page 5: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Effect of Curing Temperature on Strength

Page 6: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Effect of Curing Temperature on Strength

Page 7: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Curing Methods1. Supply additional water

with: Ponding or immersion

Spraying or fogging

Saturated wet coverings

Page 8: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Curing of Concrete by Supplying Water

Evaporation from water surface

Concrete

Water supplied from external source

Saturated

Page 9: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Curing Methods2. Seal in mixing water:

Plastic sheets

Membrane-forming curing compounds

Page 10: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Membrane Curing of Concrete

Evaporation from water surface

Concrete

Curing membrane

Saturated

Partially saturated

Page 11: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Curing Methods

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

or pads

Page 12: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Steam Curing

Page 13: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Strength vs. Steam Curing

Page 14: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Strength vs. Curing Temperature

Page 15: Curing Concrete. Curing n Moisture n Temperature n Time Curing requires adequate — If any of these factors are neglected, the desired properties will

Curing Concrete

Sealing Compounds


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