Concrete durability—its ability to withstand weathering, chemical attack, abrasion, and other degradation processes—depends on several interrelated factors:
- Mix design: Water-cement ratio, cement type, aggregate quality, and admixtures
- Cover to reinforcement: Adequate concrete cover protects steel from corrosion
- Curing: Proper curing develops strength and reduces permeability
- Environmental exposure: Chlorides, sulfates, freeze-thaw cycles, and carbonation
- Construction quality: Proper placement, compaction, and finishing
- Design detailing: Adequate drainage, avoiding moisture traps
- Maintenance: Regular inspection and timely repairs
Designing for durability requires considering the intended service life and exposure conditions from the outset of the project.
